Just bumped onto this thread. Interesting to see PG himself saying that he doesnt earn much through this site(that was in 2004 though). And now??
With the advent of internet and increasing awareness, websites are becoming a hit. A very recent website for campus freshers and providing companies info <SNIP>has been a huge hit and achieved its break-even in less than 6 months.
So there is plenty of scope in this field if one tries a unique concept.