Improve traffic to websites

I have 620 Adsense websites each on their own domain. These sites have good clickthrough rates already and only need increased and consistent traffic to be better for me. All sites use the same underlying functional design with different templates to change the look. An example of the types of site is below: [login to view URL] [login to view URL] [login to view URL] All sites have RSS feeds at [login to view URL] All sites have Google sitemaps [login to view URL] All sites have Yahoo sitemap at [login to view URL] Most sites have unique and relavent metatags. I want to improve traffic to these sites. I am open to any and all legal means for improving traffic to the sites which I would want implemented by you. I have tried a number of strategies however have not seemed to come across one that is consistently good. I believe that one way links will be the best strategy for improving traffic to the sites and I appreciate there are a number of ways to achieve one way links such as articles, tag and ping, blog and ping and directory submission. However I am open to any other suggestions. I can alter templates however would prefer not too as it is time consuming and expensive. Depending on cost I will probably want this implemented on a group of sites to start with - 20 or 50. Then monitor the success of that strategy. If it is worthwhile (ie cost benefit is worthwhile) I will implement it across more of the sites through you. Please provide me with your strategy for improving traffic to these sites. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Whatever strategy you provide and implement I will need clearly documented information pertaining to the steps completed per site.