Well. There are many different routes you could take with a tech blog. The first thing you need to do is sign up for a good affiliate network, that way you have many routes to choose from. So I would suggest Market Leverage. You can check out a review of them at this link. http://www.jeremiahcooper.com/?p=20 Also, you can sign up from the banners on my blog there or through the link in my signature. Once you are accepted, then we can start to pick a good banner for you to run on your blog. Hope this helps
Write about your passions and find programs that relate to it. Best thing you can do is write review about things you care about. Check out social networks as some can pay you to blog.
A good one might be tigerdirect (through cj.com), newegg.com, or even amazon.com affiliate program. Write about tech and link to the products you are talking about via an aff link.
ALmost all are good like moreniche,peperjamnetwork,copeac..etc...the problemnow is that you should promote the offers of your choice and it would be very difficult to do that in short times.