FT is the only site I know of that uses the dealt rake system, so you don't need to see a flop, only be dealt into the hand, and rake is distributed evenly among everyone who gets cards. Most other sites IIRC use contributed rake, as someone pointed out your RB is relative to how much you contributed to the pot. There are a few other rake systems too that I don't recall off the top of my head.
Well I started play at the .50/$1 NL tables on Wednesday morning, since then my bankroll is up about $30 from the $100 deposit I made Wednesday. Keep in mind im looking to see what happens before I make a real deposit of $1500 or so.
If you intend to survive long enough to get any rakeback, please please please understand proper BRM. $100 deposit and playing 100NL? That's fine if you're the type who drops $100 into a slot machine just for fun, because that's essentially what you're doing. But for sustained play with the intent of making money, $100 rolls you for maybe 5NL (at only 20 buy-ins). Most will tell you that $1500 is not sufficient for 100NL either, as it's only 15 buy-ins. It's one thing to take a shot but if you lose more than a couple buy-ins, it's time to move down in stakes otherwise you're risking your entire BR. Swings can be brutal -- I went on a ~35BI downswing once playing just 50NL, that was like $1700 -- so you must have the roll to withstand the variance.
No offense intended, but the sense I get from your posts here tell me you're fairly new to poker, at least
online poker. You seem to not yet grasp the lingo, BRM, or how to play for rakeback. Nothing wrong with that, we were all beginners, but you seem to be putting the cart before the horse with your plans to make money from RB. I think you really need to get a handle on these fundamentals before you can expect to succeed here.
Oh, and as other said, don't let RB or a bonus affect your game. Part of the reason for my 35BI downswing at 50NL was the fact I was whoring rakeback while also going for the "Iron" Ironman level. I was forcing myself to play when I didn't feel like it, for longer sessions and more tables, and it just wore me out. I did get Iron, and made a ton of rakeback 9-12 tabling, but it wasn't nearly enough to show any profit for the month.
Best of luck to ya, though.