This is fun-there is a webcast on the controversal new ATM (automatic term mapping.)
Here is the announcement with link-
NLM has announced a webcast for July 17 @ 2:00 PM ET. The title is: Search Clinic: PubMed® Update on Automatic Term Mapping, Citation Sensor, and Advanced Search
Information on the upcoming webcast can be found in the Technical Bulletin : http://www.nlm.nih.gov/pubs/techbull/ja08/ja08_search_clinic.html
Only 300 people can attend. That will be an interesting 10 minutes before the event!