*Jquery_update 2.x-dev is required for it to function 100% in Drupal 6. 7 release just works :)
Features:
*Configurable bar w/ set buttons and ability to link off to social networking sites
*Integration with cookies plugin
*Integration with easing plugin
*More visible login / logout area
*Optional integration with the print and search modules (as well as webaccess / activation_codes but those aren't on d.o.)
*Permission to dictate who can view the bar
The Wunderbar! is a floating bar that was recently implemented on http://elearning.psu.edu/ This project is marked alpha because of browser support. Compatibility has been documented in the http://drupalcode.org/viewvc/drupal/contributions/modules/wunderbar/READ... file but it's working correctly in most major browsers except IE (V 0.6 and higher now works in IE8!). If this can be made to work in IE7 then I'll mark it a full release.
It has all the icons shown in the drupalcamp montreal presentation Extreme Navigation Tactics but some have module requirements that are internal to Penn State. The AIM status button hasn't been implemented.
Taxonomy NCO uses Normalised Co-Occurrence analysis to look for relationships between terms in Drupal vocabularies. This allows us to infer semantic relationships between terms, and thus to provide advanced 'you may also be interested in' links. On large vocabularies this technique can bring big improvements in user experience and SEO.