SharePoint + Twitter
Follow SharePoint on Twitter – SPTwitters. Never mind if you didn’t make it to first 30 
It really makes me feel so connected with other SharePointers!
Come on, join in! Would you be interested in joining SharePoint Knowledge Network on Feedburner? Contact me if you want to.
Is there a way to send list alerts from sharepoint to a twitter account or twitterfeeder?
thanks
There is a web part that integrates Twitter with SharePoint (you can allow your users to tweet out of the portal). http://www.codingstaff.com/products/sharepoint-web-parts/twitter