from the BioMail Home Page: "BioMail is a small web-based application for medical researchers and biologists. It is written to automate searching for recent scientific papers in the PubMed Medline database. Periodically BioMail does a user-customized Medline search and sends all matching articles recently added to Medline to the users' e-mail address. HTML-formatted e-mails generated by BioMail can be used to show selected references in medline format, which is compatible with EndNote reference manager." You can either download and run it at your site or get an account on their server...
as seen at freshmeat: "Major rewrite with lots of changes, including becoming object-oriented. All database handling was moved to the separate class. Ability to change the quantity of searches (now between 1 and 10), and to change the maximum quantity of references (now 20 to 400) added. A text area for the user to write a note to the authors was added. There are no longer empty accounts generated." read more at the BioMail Home Page
as seen at freshmeat: "Some bugs were fixed, minor GUI changes, documentation was added to dbflat.pm class." For more see the BioMail page.