Special thanks to Jen Grisanti, of Jen Grisanti Consultancy, for pointing me to this week's great website. But if you're looking for particular movie scripts or scripts of produced TV episodes, check out Script City at www.scriptcity.com. Unlike Drew's Script-O-Rama or Daily Script, Script City is a pay site... but it has a MUCH larger library than any of the free sites. Most scripts are between $10 and $20, but they have scripts (and different drafts!) of hundreds of movies and TV shows.
Whether you're researching a TV spec you want to write or just love reading sceenplays, this is a terrific site!