I have 1 Domain with 6 Sub-Domains, all related to a common theme. All 6 Domains are hosts on different servers, behind a cloud flare DNS. The sites have 100,000s of page each. I have tried various things, including tweeting, and spammy backlinks, and the sites now generate approx 400-500GBP a month, in adsense revenue. I'd like to keep to this unobtrusive sort of advertising\income so stay away from pop-ups etc. I feel that I have now got these as far as I can personally got these sites, However I do feel the income could be pushed a whole lot further. I'm looking for someone with a proven track record, to take a look at the sites, and advise the best direction to take now to promote, and improve on visitor counts. Then either do the work, or point me to people that can provide the services I provide, at reasonable prices. I would prefer to use off-site methods unless something is drastically wrong with the onsite. I don't have a fixed budget in mind, but bear in mind I am working on other sites, so this could be an on going project leading to future work.