Basically it is like the old council clean-up night (with better gear!), but instead of your gear becoming land-fill, someone gets a little bit of use from it ... It works on a first-in, best-dressed basis, so if you see something listed, contact the person straight away.
You may also be looking for something ... Post your request and you never know - someone may have just what you're after, lurking in their shed.
Looking forward to hearing your thoughts.