Free $50 within your grasp.

       Pokerstrategy.com offers you the chance to win a free $50 by passing a relatively easy quiz. I say relatively easy because you can find the answers on their website, but the answers are not in broad light so you pretty much have to read the whole articles from which the quiz is, or watch the videos that come with the articles. I just finished the quiz, and wait for the free money.
      Alongside with the free bankroll that is pretty much enough to start your way up in poker, without investing in it, comes a high quality training, in which anybody can learn poker, and play like a pro in a matter of weeks, so don't just stand there! Go get some free money for yourself :P!
      You can try it yourself here or here.

Online Poker Hold'em.

      This one is an interesting way of making money, because there are a lot of ways you can make money and not invest (or deposit as you may want to name it). It's possible at least on one online poker server: Poker Stars. How?
Well all you have to do is create an account on pokerstars.com, download the casino and play. You can participate at freeroll tournaments and, if you finish among the first players, you will receive payment in cash. After you've made some cash this way, you can play at low pot limit Hold'em tables and win much more. As in the case of online Blackjack, it is best for you to play with some friends at the same tables, and collaborate with them. If you know what cards other 2 or 3 or 4 players have in hand at your table your chances of winning increase dramatically, and those of losing decrease. Another good thing to do at poker is to call every hand in the beginning, regardless of the weak or strong cards you have in hand. You can do this especially in the beginning of the game, when everybody has the same amount of chips. But don't bet big after the first 3 cards are down and you don't have not even a good pair, and especially, don't go all-in, because chances are, you will lose everything. Learn your adversaries, learn which one of them are bluffing (eventhough they don't have anything) by watching carefully the whole game, not only when you are betting. Another good thing you can try out is to play at less known casinos. This is because at Poker Stars you will encounter newbies as well as world-wide poker masters, and other well trained players. Whereas at other casinos, that have slots, roulette, and other games, you will encounter mostly people who are addicted to gambling and will say: "Go on, take my money! I don't need it anymore! I just came here to satisfy my need for gambling :)!". So, good luck at the tables, and remember: Do not put money in this game! It is absolutely unnecessary. There are freeroll tournaments every 4 hours, non-stop. If you cannot win at those, it will be very hard for you to win when your real money is on the table. You don't have to win them all. It is enough to win one a day and you will win more than you ever won at any casino.