A Geek-turned-lawyer's Guide to Hotlinking

Mark Epstein writes "Ticketmaster sued Microsoft. A whole bunch of news companies sued Hotnews. Why? This article (with incredibly bad picture) talks about why & how to avoid getting sued. It was written for geeks, so I'd like feedback from slashdot readers. Please note that I've moved to a much cooler firm (no more ties) with a new email address as noted, and that I spelled my name right, even though the url didn't. "