A good alternative full of normal people seems to be the likes of forums, message boards, news groups and other social sites. There is usually a group that covers your area, area of interest or what your into. Most forums will have a dedicated section, there are some pros to this method of trading mainly not your typical eBay user, normal sane people who are generally more honest as rep is everything on a board. Today I have been looking at Reddit, it has many swap groups and now dedicated market place. I will list what I have found so far.
What I found so far :