Much has been written about Poker Tells - countless websites and more than a few poker books go into a lot of detail about how to read your opponents. It is explained how hand movement, eye movement, respiration and a whole host of other physical phenominon reveal what a player is holding.
Internet Poker, however, is a different kettle of fish. How can you read your opponents when you can't even see them? There hasn't been much written about Online Poker Tells as of yet - this is a whole new area that begs examination. ♥♥
It isn't to say that there are no Online Poker Tells, there just aren't as many.
Online Poker Tells: It's all in the timing.
Vanishing your Online Poker Tells: One way a player can, and should use online tells to their advantage is not to have any. This much harder to do that it appears: Time each of your responses so that they are all the same. Another way is to set a slightly different response time according to the last card turned up on the board. Wait 2 seconds if it's an odd card, or 4 seconds for an even card. Mix this up to suit yourself, red vs black, high vs low. Either way, it's sure to confuse even the most observant of opponents.
♥ True Poker's 3-d Graphics is unique, in that it gives it's players more brick-and-mortar Poker Tells. For example, when you or your opponents look at your cards, the 3-d avatar also look at their cards!
♥♥ Phil Hellmuth's online poker room, Ultimate Bet Offers video seminars - including Annie Duke discusses Online vs Brick and Mortar Ring Games, Mark Gregorich discusses Eight-or-Better Strategies and KrazyKanuck reveals secrets of Online Tournament Play. They cost $19.95 each to download, but if you pick up any tips that win you just one pot, it's already paid for itself.
