Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.
Plugin for WordPress to insert the code snippet for IE6Update into your WordPress pages.
Adds a social bookmarking menu to your posts/pages/index. Based on Josh Jones' SexyBookmarks plugin: http://eight7teen.com/sexy-bookmarks
Make TinyURL-like URLs (you.com/33ks8s) that redirect to pages inside / outside your blog. Can also create human-readable aliases (you.com/facebook).
Improves your blog's search engine optimization by "noindexing" pages you choose.
This plugin parses and displays upcoming events from a Google Calendar XML feed.
Since WordPress does offer attaching downloads to pages, but doesn't keep track of the amount of downloads, this plugin was written.
Let your visitors bookmark, email, share and link to your pages. Get this fast, customizable dropdown button.