After chasing PageRank for years, webmasters now have to add another dimension to their search engine optimisation consideration. This is particularly true after Google launch the Google Plus(Google+) and started Google Plus One(+1).
Social signal can come from various sources, for example Facebook Like, Retweet, Google +1, etc. Think about the following scenarios:
* If a [...]

A few months ago, google announced that landing page load time will soon be incorporated into Quality Score.
In short:
Why are we doing this?
Two reasons: first, users have the best experience when they don’t have to wait a long time for landing pages to load. Interstitial pages, multiple redirects, excessively slow servers, and other things [...]

The original content has be erased, i guess this is one of the highest resolution backup that we can get
http://undergoogle.com/tools/GoogleMasterPlanEN.html

Now you can create / edit / and share spreadsheets and documents using google, I would say this is a great service. I’m struggling whether should I upload all my existing spreadsheets? May be I trust google more than my machine
If someone send a spreadsheet to your gmail account, let say excel, you [...]

Have you ever wonder why you can not have GMail inbox in 1 tab, GMail compose message box in another? Do you face the difficulty to find a contact from inbox while composing message? I guess what we normally do is save the message as a Draft first, check the information from inbox, then open [...]