There are all sorts of systems and books out on the shelves today that teach gamblers the art of beating the game of blackjack. Some of them have been tried and tested over a period of time and will give you a slight advantage over the house. Others aren't worth the paper the information is written on and others may work well but only when no one "upstairs" is looking.
This is a simple, easy to remember system which has worked for many blackjack players that have put it to use both online and off with great success. Try it for a few months, track your success and see what you think.
The key to success with blackjack is to always play like the casino plays. Whether you are playing blackjack online or offline, you should always play like the casino plays.
If the dealer hits a soft 17, you hit soft 17, if the dealer stands on 17, you stand on 17. It doesn't get any easier than that and even though it is hardly the most exciting way to play blackjack, it works and makes money. Isn't that the reason you are playing blackjack in the first place?
Another point to mention, with this system, you decide from the beginning whether you always split Aces and you never split eights. Concerning the Aces, decide right now and either always or never split them. As far as the eights are concerned, you will see situations that you possibly could have split them and made a profit, but over the long haul, it doesn't pay to split them.
Even though you aren't really betting with the house, you are playing your hand the way the dealer plays her hand so therefore it really makes more sense to play this way.