Yes, adsense and affiliate commissions help with one stream of income.

Writing freelance articles and posting to forums adds another egg to the basket.

But for the two years I have been doing internet business I have always been able to pay my service and webhosting with what I make from surveys. There are a few good one's out there that actually pay cash.

I even make a bit on a few select PTC sites that I dedicate the earnings to increasing my library.