Most of SEO methods I have done and seen always works with only few keywords - like 1-10 phrases, but how to do onsite optimization and offline link building with such huge numbers? I have this wordpress tube site I want to optimize but find it really hard to find any information on this kind of SEO. Does anyone here have experienced with this? Since there is no way this could be done manualy, I guess some SEO plugin might help, but I have no idea which one is good, since so far I usually work with much smaller amount of keywords I did most things by hand. Any suggestions on this topic are very welcome. Thanks for help guys.