I know it's not a high-risk activity, but I'm tempted to go out on a limb here and vote in PantyAmateur as the best panty site I've seen. Before you get your knickers in a knot, consider that this site has all the advantages of being armed with Brit chicks. Moreover, they have cute accents and say things like knickers when lifting a bit of skirt to show off their thinly covered pussies.
This very sexy, mildly foreign flavor is accentuated by ensuring the focus of everything on the site is aimed at its raison d'etre: the panties. The stripping, posing and teasing is not a routine. The models put something special into every sexy movement.
There are currently over 1,740 videos available, a new one is added daily. That's an excellent collection and the good stuff doesn't stop there. Playback quality is excellent and full file downloads are in MPEG and Windows Media format. You'll also find an iPod-friendly file for the newer episodes. Along with the top-notch quality of the movies, the site itself is also good-looking and well-designed. Navigation is easy and user friendly.
Every rose has its thorn and the pointy bit of this site is the download limit of five gigabytes. There are also no photos of these sexy mammas in their underoos and with a collection this size, a search feature would really come in handy. Still, it's a giant world of sexy, amateur babes in tiny bikinis and thongs.
I wasn't a big panty fan before I checked this site out so it deserves extra points for converting me. Niche fans should be ready to sign up without so much work, because this site has oodles of content featuring chicks that will make you horny both from the way they look and the way that they talk.