Czesc Thotmes
I can See you're also from Poland hehe.
Just my 2 cents, I can be wrong but I think you dont have to submit each free site that you build because they will be automaticaly submitted....
For myself I only submitted
http://www.pornlucky.com to the major SE's and all other free sites that I built on this domain are on google without submiting....
*edit*
of course if you get listed on Link lists , tgps etc.