LiveJournal
Currently LiveJournal has five kinds of accounts. About 95% of all LiveJournal users use a non-paid account ("plus" accounts). People can pay for their accounts ("Paid" accounts) and get more features, or they can get a "sponsored" account, which is free and has more features, but has advertisements. "Early adopters" are the accounts of people who signed up for LiveJournal back in 1999 or 2000. There are also permanent accounts. Most people can not get a permanent account. LiveJournal only sells them sometimes, and they may not sell them again.