Google has launched a Web page plug-in called What's Popular that can give iGoogle home page users a service similar to those offered by Digg, StumbleUpon, Reddit, and Mixx.
Google's own servers select links from YouTube and Reader and blend them with those submitted by users. The gadget shows users these links along with up and down arrows to vote approval or disapproval of the site.
Lacking in the Google feature is any way users can comment on a Web page, one of the central features of Digg and its rivals.
Rumors of Google's interest in acquiring Digg surfaced in 2008, but so far nothing has come of it.