Some of the great ways for Viral Marketing is Youtube. People do not seem to use it to it’s fullest potential. Just by putting up some great videos, stuff that gets plenty of views with your link in the description you can get a massive amount of traffic. Also Digg of course. Write a few interesting original posts and get lucky enough to get popular and instantly get tens of thousands of hits.
I have a massive Diet Pepsi addiction. I finally decided to count how many garbage bags of bottles are in my garage and i have a whopping 17 bags full of cans. I prolly have $200 in cans alone. I just hate taking cans back, so i just let them build up, return them and go to the casino. I have been doing it like this for years.
Another blog ad company i took a test run on was Pay Per Post. I got a coupon from a forum a while back so i gave it a try. You have a lot of control over your posts, what PR they go on, what Alexa range and categories. They charge a 1/3 charge on whatever the bloggers get. It was a nice run and also helped PR and SERPS. Once again it helps drive some traffic if you get decent blogs. They also have PPP Direct if you are looking for specific blogs. It is actually a lot cheaper if you go that route.