• What percentage of PageRank is lost through a 301 redirect?
  Loss of PageRank from 301 redirects is same as a link. So it means percentage of PageRank that dissipates through a 301 is currently identical to that dissipates through a link.
  
  
• What are the advantages of 301 redirects over rel=”canonical”?
  301 is a direct instruction for redirecting pages through .htaccess file or webmaster tools while rel canonical is just a strong hint to avoid duplicate contents.
  
  
• How will Google interpret links to URLs ending with a campaign tag?
  Google usually detects they’re irrelevant, but 301, canonical tag or Webmaster Tools can help
  
  
• How can I get Googlebot to notice a 301 redirect?
  301 is one which is automatically noticed by Google, So let Googlebot find it in its own time
  
  
• Is there an advantage to using rel=”canonical” over a 301 redirect?
  Matt advice to use 301s in general as its most useful and used.
  
  
• Can too many redirects from a single URL have a negative effect on crawling?
  One or two is fine, any more than five and Googlebot will probably not follow. Avoid mixing 301 and 302s as well
  
  
• How do I change domain?
  That’s the big decision to make, so you can test first with a subpage and 301 it. Then start with the smallest parts of your site and move it gradually
  
  
• Is their limit to how many 301′s I can use.
  Have as many as you like, but Matt says that you don’t chain more than five
  
  
• What is the benefit of using the change of address tool in Google Webmaster Tools?
  It notifies Google quicker than just 301′s, but do both
  
  
• What’s your take on “addon domains”?
  Matt advices not to make too many small sites and advice to do 301 to main site if you have them. Don’t make multiple sites
  
  
• How can I merge two sites?
  301 redirect each webpage to the new webpage. For correcting back links profile, contact any good links you may have asking them to update their link
  
  
• Does anchor text carry through 301 redirects?
  As per Matt, Anchor text transfer value to 301 redirect sites and say typically yes

“We’re doing a better job of detecting when someone is sort of an authority in a specific space — it could be medical, it could be travel, whatever — and trying to make sure that those rank a little more highly (if you’re some sort of authority or site that, according to the algorithm, might be a little more appropriate for users.)” ~Matt Cutts, Google

Taking another step back … the “*” section is likely much more complex than you really need. When possible, I’d really recommend keeping the robots.txt file as simple as possible, so that you don’t have trouble with maintenance and that it’s really only disallowing resources that are problematic when crawled (or when its content is indexed). My guess is that only /search/ is really problematic (since it puts a significant load on the server), but you’d know your site best.

Finally, keep in mind that the robots.txt file doesn’t control indexing. If you want to prevent URLs from being indexed, you would need to allow crawling, and serve the appropriate robots meta tag (or x-robots-tag header).

By John Mueller Works at Google Switzerland

“It means use whatever is best for your purposes, because you don’t get to horde or conserve any more page rank if you use a 301, and likewise, it doesn’t hurt you if you use a 301.” – Matt Cutts

“Matt, he would wrap content and user experience into one. You need great content that is easy to find. Then link building, SEO, viral, etc gets easier. Long term, social and identity will mean a lot more than they do now. Links still matter more than social signals on Google and Bing. Social has a heavier influence.” Matt Cutts

“The objective is not to “make your links appear natural”, the objective is that your links are natural.” – >Matt Cutts

“Good SEO work only gets better over time. It’s only search engine tricks that need to keep changing when the ranking algorithms change.” – Jill Whalen

“Optimize the sites also for users not only search engines.” – Mohnesh Kohli

“Must check the history of domain name, don’t buy a domain name that was involved in spamming and hacking.” – Aprajita Kohli

“Within search results, information tied to verified online profiles will be ranked higher than content without such verification, which will result in most users naturally clicking on the top (verified) results. The true cost of remaining anonymous, then, might be irrelevance.” – Eric Schmidt

“SEO is not SPAM.” — Matt Cutts

• Automatically-generated gibberish
• Clocking
• Scraping content from other websites
• Intentionally violation of Google’s Webmaster Guideline

Google is fighting with such pure spam by computer algorithm and manual intervention. If you want to know which site have been found in pure spam and removed from Google Index daily you can see the example here.

Google warning is there Be Careful “We’ve removed some pornographic content and Malware from this demo, but otherwise this is an unfiltered stream of fresh English examples of “pure spam” removals..”

In October 2011 Google changed the classification method and cloaking and sneaky redirect actions were labeled as “Pure spam”. In December 2011 Google start sending notification for Pure spam. In Google index Pure spam is bigger than Unnatural links spam.

Submitshop wishes all of our clients, readers, staff and followers a very content and peaceful Christmas break!.

It’s been a busy and exciting time in the industry this year. We have been working hard on developing some of the new products and services for existing clients, outsourcing and prospective ones. We are looking forward to an exciting things in the pipeline to start in coming days.

We like to thank you for your support, trust and association with Submitshop.

If you are new to the submitshop, please take some time to look around and get a know about us and the work we do.

Once again, we would like to wish you a very Merry Christmas from all of the team at Submitshop.  
Stay safe and enjoy your holidays!

As stated by them ” Raven has decided to remove unauthorized Google data from our platform. As of 5 p.m. PST (GMT-8) on Jan. 2, 2013, we will no longer offer Google rankings and are eliminating our SERP Tracker tool in its entirety. Also, we will remove all data provided to us by SEMRush. You have until then to include any of that data in your reports.” For more on this visit http://raventools.com/blog/scraped-data-serp-tracker/

This seems More accurate rendering of the rich snippets, cleaner User Interface (UI), and translated in many languages like Arabic, French, Spanish, and many more!

However the revised tool is located at same old location with same URL name as before http://www.google.com/webmasters/tools/richsnippets

There are two TAB for this tool

• URL - If you have webpage online, enter the URL to check
• HTML - if you have webpage under development, add code (limited to 1,500 character limit) however if the page size is more, it makes testing of pages in development much more difficult

 I personally like the look of new structured data testing tool which is visual design, it is now more accurate as for as concerned the testing tool to better match how they appear in search results

 Attached is the snapshot created for Submitshop

Google has made some more changes  and started giving more detailed break down of these errors:

• Lookup error
• Timeout
• Total DNS errors

 Lookup error
DNS Lookup means that Google is not able to access your site due to the fact that your DNS server did not recognize your hostname (such as www.submitshop.com)

Timeout
It means that Google couldn’t access your website due to DNS server did not recognize your hostname (such as www.submitshop.com).

Total DNS errors
Googlebot is not able to crawl or fetch your site because Google is not able to communicate with the DNS server, or because your server had no entry for your site. It may due to server downtime, or DNS routing to your website.

It will be more helpful for webmasters who are non technical with server or DNS related factors and help to reduce down time of website.

References
http://googlewebmastercentral.blogspot.com/2012/08/site-errors-breakdown.html 

Google+ pages is available to a wide range of businesses and organizations, Go to http://support.google.com/plus/bin/request.py?hl=en&contact_type=page_verification&rd=1 and fill the form given with following details

• Your Google+ page must be authorized by your commercial entity, organization, brand, or product.
• Your Google+ page’s profile must contain a link to your organization’s website.
• Your organization’s website must connect to your Google+ page, by adding the Google+ badge or by adding a snippet of code.
• A meaningful number of people must have added your Google+ page to their circles.

Some of the other must fill other details you need are

• URL of your organization’s Google+ page *
• URL of your organization’s website *
• Your organization’s address *
• Your organization’s address *

Please be aware that you need a meaningful number of people must have added your Google+ page to their circles

• Upload an HTML file to your domain’s web server
• Add a <meta> tag to your home page
• Verify using your Google Analytics tracking code
• Create a TXT record

Now Google have new CNAME Domain verification, by which you can edit your DNS records and verify the domain name to use Google Services.

For this you have to create DNS CNAME record as follows

• Add the domain abc.com to your account in Webmaster Tools

• Select the Domain Name Provider method of verification

• Select your domain name provider that manages your DNS records or “Other” if your provider is not on this list.

• Based on your selection, Follow the instructions to set a CNAME record or see a link to the option Add a CNAME record.

• Click the Verify button.

 This method of verification automatically verifies all the sub domains or all websites on this domain.

 Domain verification method sometimes can take more time as compared to other methods due to propagation of DNS on internet.