Well you have to compare the number of dot coms in existance right now that are established compared to the co.cc's. I'm sure there are some co.cc's that are competitive, but the problem is geographically a .com is going to be weighted heavier across the globe.Yeah i guess .co.cc is bad for ranking. Come to think about it, i've never found any search results with .co.cc blog or site ever! not on the first 3 pages on SERP anyway.