A diamond is forever
After reviewing most of the Best Slot Machine Strategies online, I have come to the conclusion that they do not offer any advantages to online players whatsoever. Most slot machine strategies are written with the bricks and mortar casinos in mind.
In my humble opinion, the best slot machine strategy, online in any case is to sign up with the online casino which offers the best deposit bonus and reoccurring bonuses. The percentages offered in payouts during online play varies between each casino by as much as 15%, so do your research and play at the casinos which will reward your time and money with the greater payouts.