Here's what I suggested from a few weeks ago, when the number in question was $15. Just triple the number of sites you produce:
1) Go join Rapbank, JVZoo, Payspree, or other 'IPA' program (i.e.,Instant Paypal Affiliate). Join Adsense and Amazon too.
2) Go through their 'marketplace' sections, select products paying $20+ per sale. Check the landing pages of the sites to review their quality.
3) Use the Adwords keyword tool to find good keywords (high Adwords comp, high CPC, low SEO comp) that work with the affiliate products.
4) Check Amazon to find higher ticket items that correspond to the instant pay affiliate products with good matching Adsense keywords.
5) Select 5 or 6 good "triple threats" (an interlocking good Adsense, good Amazon product, and good IPA product).
6) Create 5-6 MNS sites, monetized by the three profit centers above. Spend the $15 (here $50) on cheap domains/Fiverr gigs, use a free webhost.
7) Push your site in your sig on related forums/groups, answer 3-4 Yahoo answers per keyword, put up 1-2 videos on youtube per url, etc.
8) BANK.