Webfeeds: Astrophysics Data System

Ooohh, another database has gone RSS. Now I'll have three to show for my class on Thursday, along with Compendex and HubMed.

Run a search, then go down to the very end of the page. You'll see the orange XML box with the feed link that you can capture. It looks you can create the search to run against any combination of the 4 databases, including the arXiv e-prints (which has its own set of specialized feeds on its site).