They are comparing you to web-apps like this: http://getsatisfaction.com/
You need to get better at distilling your messages into just a couple of words.
You need to get better at distilling your messages into just a couple of words.
This is a starting point for the destillation. Thanks for the advice, I am thinking about it.
Another one http://highrisehq.com/why
Remember when writing your words - almost all of your potential customers know nothing about group buying. Those who already know what it is have probably got a solution already.