TBUZZ is your browser’s bookmarklet is an easy way to talk about the websites you visit on Twitter. TBUZZ makes it easy to tweet the page you’re visiting or keep track of the buzz around it.

OnTheRoad is a new web app developed by  Devmasters Inc from Czech Republic. The application will be presented at Mix’09. The application has lots of features such as sharing planning trip with schedules, pin-up on the map mesh, share and collabrate (and TripBook (a blog feature to write about your trips, articles, media comments etc). 
More info: OnTheRoad