A third from Google, a third from direct traffic, and a third from referring sites. I would like to get more from Google, as I'm sure everyone would.
I get traffic on my site and blogs from Google, yahoo, msn, bookmarking sites like digg, netscape, yahoo answers, squidoo, hubpages and some from blogger blogs
Mostly from search engines. I do quite a bit of article marketing and have consistently ranked well. I do use PPC as well. Both are profitable. There are more details in my free report that talks about different strategies and methods to get free targeted traffic for your website. You can get it from my signature.
And how much traffic do you get / day? Also, what is the difference between google and stumble upon in terms of conversion?
I get about 60% from SE, but the percentage from SE is coming down with more direct visitors increasing.
Main traffic nowadays come from Search Engines & if your site is well established & favourite among users then people will remember & the traffic will directly come from the users & If ur site needs to sell things then may be affiliate programs, reviews & other blogs..
I've gotten some paid traffic for less from AdToll. They're not too bad. Don't expect many conversions though.
It will take someone THOUSANDS of links in a SHORT TIME to get penalized...unless you are linking TO bad sites....