greenbone: i think trademe does have reason for concern, not from wheedle ... from facebook
the BST groups on facebook have exploded in the last 6 months. the largest, hustle live, has over 70k members. dozens of items listed every hour. and hustle is one of many
imo trademe has greatly underestimated social integration. tagging friends on items you think they might like for example
plus of course the benefits of no fees and no restrictions on the items listed has helped made fb groups popular
My wife used a local Facebook site to sell off all our unwanted stuff when we sold our house in Canada last year.
Despite the fact there's a large free listing site (kijiji.ca, Canada's equivalent to Craigslist) in that city.