Script Summary: adds links to hashtags.org, twemes.com or search.twitter.com to tweets on twitter.com
use the greasemonkey menu to select which site you want to use:
update 2008/07/15: renamed summize.com to search.twitter.com (why?)
update 2008/06/30: added support for summize.com
update 2008/06/19: the hashtag is also delimited by the following signs: .,!?
update 2008/05/08: updated class attributes
update 2008/05/03: the script now also works with the latest revision of twitter.com
