PubMed on Tap is an application for PDAs that retrieves MEDLINE� citations directly from the PDA through a wireless connection to the Internet. PubMed on Tap features include several PubMed search limits, a history of previous queries, the ability to email citations or save them to the Memo Pad, a clustered results option, and link-out to full-text Web sites. full url for our software is http://archive.nlm.nih.gov/proj/pmot/pmot.php