The following figure:
used to have many articles mentioned related sites link exchange, but did not elaborate, this is a summary of my experience. At the same time, the exchange is also very obvious: Links platform Google keywords ranking fourth, Shanghai has been ranked third before the love, but the site was attacked this word has no stable.
, why exchange sites
RP= character. Change link is like making friends, in some cases, not only consider the Links quality, character quality actually more valuable! Links network platform to push grass I just open the search engine, solid foundation, PR has been 0. But in this case, I find the link through various channels, the exchange of dozens of PR3-5 links, which also pushed the Grass Valley PR0 network later look into one of the important reasons of 3. Also thank these webmaster friends for supporting me!