Haha, yeah, went off topic a little.

Well, you've got to be innovative and try new things. Personally, I post the download links on YouTube, Facebook, Yahoo! Answers, etc. Basically, social networking sites are the simplest.
However, don't just be limited to these. Look around, try new things, and next thing you know, you could hit a fortune. Maybe find a forum related to the download (i.e. XBox forum for CoD: Free Download). You get it...
Yahoo! Answers are good too because they get ranked really high up on Google. For example, if somebody asks where to get a free PC download of CoD, answer the question with your link and people might see it. You can also do a little blackhatting and create two Answers accounts. Ask a question related to your download with one account, and answer the question with the other. Then, give yourself the best answer... it's free advertising at it's best!
By the time the question gets reported, you could have already raked in the dough; possibly hundreds and thousands.
Anywho, just a couple examples. Just remember, from one noob to another, DO NOT GIVE UP! You know how long it took me to make my first dollar? 5 months of pure thinking and innovation was how long! And now I've got the juices flowing, and the money in the bank.
Put simply, BE INNOVATIVE AND KEEP TRYING!