Google is in the process of shutting down a number of services. They say the services are going to be shut down because the services haven’t had the impact they had hoped for.
Some of the services in the list are:
Google Bookmarks Lists – for sharing bookmarks and collaborating with friends – end on December 19, 2011.
Google Friend Connect – allows webmasters to add social features to their sites by embedding a few snippets of code – will end on March 1, 2012.
Google Gears – A Firefox and Internet Explorer extension that allows to navigate on compatible websites offline and synchronize when going back online. – In March the Gears browser extension for creating offline web applications and support to new browsers were withdrawn. End of December, Gears will no longer be available for download.
Google Search Timeline – graph of historical results for a query
Google Wave — From January 31, 2012, Wave will become read-only and you won’t be able to create new ones. On April 30 it will be turned off completely.
Knol – After October 1, 2012, knols will no longer be available
Check out the Google announcement on their blog – More spring cleaning out of season
SocialNetGate – One stop solution for social media management