What happens if i search for my keyword on google and the first sites ("my competitors") are sites such as Wikipedia, YouTube...etc. Should i consider this megasized sites my competitors?? or shut the ones that i really could complete, i mean have a chance .
No, of course not. Use your common sense If your #1 competitor is Wikipedia, you can't possibly outrank them, not in the near future. Consider PPC, or rethink the keywords you want to rank well for. Or, become #2, if possible. Also very good in my experience. By the way, lots of glossaries and niche sites are shutting down because of Wikipedia. They simply can't complete. Warkot
BTW, do you know any PPC payable with paypal?? Cause i am planning to start a campaign on february or march for my one of my sites. Right now with the christmas, i ran out of money... Also... do you know any "niche PPC" for topics like health and sports?? thanks.