Here are a list of links with interactive soundbites in no order of preference.
If you find more please feel free to post them.
<ul type="square"> Line 6 [/list]
<ul type="square">Boss FX interactive [/list]
<ul type="square">Digitech [/list]
Has streaming videos showing all the fx in use. This has to be the most useful website I have found to date in explaining what products actually do. The demonstrators are pretty enthusiastic too, and Paul Kramer is a pretty cool guitarist. There are also a number of mp3 sound files.
Thank you for your interest in Guitars101.com. A forum community dedicated to guitar owners and enthusiasts. Come join the discussion about collections, displays, models, styles, amps, modifications, kits, reviews, accessories, classifieds, and more!