I have a question about building Web 2.0sShould you use a different email address for every account you make? Is it better using free email address such as hotmail etc?Why do people insist on using proxies to sign up to different sites? Google don't have that kind of information do they to know which ip was used up on sign up? Never got my head around that. Also, in regards to tier 2 links how many links to each property is a good number? Do you just do a few to get it indexed or the more the better?