This is a popular traffic generation program that relies on one-way backlinks to promote SERP improvement. Traffic is gained through organic search engine listings; no code, banners, auto-surfing, popups or more nefarious black hat techniques.
Idea is to allow users to submit articles for blog owners. The bloggers get free content, and you get backlinks to your website for keywords you select within each article. It's simple, and it seems to be working for a lot of people.
Free and pro memberships, usual promos, etc. Affiliate program.
All the details are here:
Free Traffic System