How can I promote myself as an affiliate marketer?

[Andy]

You could start a youtube channel and upload video relevant to your niche. Then use the video to help you rank a web page that has the video embedded. There are some good tutorials to help you do that.

Use all the social networking sites you can join but don't try to post an Aff-link, just post a link to your webpage with the affiliate link on it.

Keep commenting on blogs and find those that have greater traffic and pagerank. I use Scrapebox to find all the best pages, both for relevance and pagerank. No spammy techniques used here, Google love quality links. These methods all help to drive targeted traffic, especially quality blog comments on related blogs.