My advice is pick ONE site and stick with it. If you have a network, then put all the sites on one domain and push that domain. (eg
http://www.tacamateurs.com )
Its FAR better to have one big site ranked on places like google than to have lots of little sites ranked way down.
Id also take the $250 youve earned and re-invest ALL of it in buying fresh traffic. Keep doing that for 6 months or so before you take any money out yourself.
Most importantly stick at pushing the ONE site. Dont be tempted to start launching lots of little sites as they wont make a bean. You really can be earning tens of thousands per MONTH in this game. It can take years but you'll get there
Good luck