Adsense/marketing strategy

I have 101 news web sites that generate news primarily from rss feeds that link directly to the other web sites where the articles are read as most of them are not read on my site. I do have some articles that are read on my web site, however. I presently have some adsense ads on the sites but I need a strategy to find ways of generating more income from the web sites via adsense or other methods. The scope of this project is to develop the strategy and not to impliment it. I would post another project for implementation of the strategy.