Well this is the ongoing topic of so many blogs, thought I'd give my take.
 I've been trying to make some money via the web for about 2 years now. I use or have used survey sites, adsense, traffic referal sites, ptc,  independent ad companies, social networks and ebay.
 So far I've not made enough money even to replace my mouse =/
 So what am I doing wrong? I dunno, I guess I haven't tried everything out there yet (there are still article writing sites and others to explore). But the thing that gets me is that it is possible to earn some decent money on  line but there are so many scams and opps that pay less than 1p an hour that it's almost impossible to find the legit ones. Ah well :)
Any tips would be cool :)