Not sure if this is an iTunes or Limewire question, but was wondering who are the people under my 'shared music' list such as

'John Doe's Limewire Tunes'

I never added them but they're just there. The one guy's name I recognize as my neighbour's (we never talk or anything so he wouldnt add me) and then I have another person on there I know lives around here.

Does it just automatically add people who live close to me or something??
Or is my wireless adapter picking up their network signals 3 houses away, and sharing their music with me because we're somehow on the same network??