Ive herd from alot of people that there actually using proxies and clicking sedo/gold key links themselves to gain traffic and money. Apart from not knowing what a proxy is, is it true?
If it is this is something Sedo Need to look into.
Here is an article that describes some of the techniques that fraudsters use to cheat the pay per clicks. The articles is based on Adsense but applies to just about any pay per click model.