okay you guys this is all well and good, but my cookie game is really only the tip of the iceberg of online time-wasting
so here are a bunch of other similar (often better) games, compiled from a list someone made on /v/ :
(WARNING, these are some serious time-wasters, some of this is way more addicting than Cookie Clicker - DO NOT PLAY IF ALREADY SLEEP-DEPRIVED)

• Candy Box, which actually inspired me to make Cookie Clicker in the first place. it has dungeons and stuff, I think it’s CHARMING
• A Dark Room, which is super-rad and surprisingly good-looking for a text game
• Gold and Gems, pretty much Candy Box with (not very good) graphics and none of the humor
• that one japanese game with boxes, which is a little tricky to get but pretty fun
• Ginormo Sword, which is two weeks of my life I’ll never get back. MAKE DA SWORD BIGGER YO
• Kaguya Table, about flipping tables I think ?
• BoxCar2D, which seems to be a car-generating genetic algorithm
• Progress Quest, if you don’t even feel like interacting at all
• Powder Game, where you spray particles of various materials to create strange new worlds (another favorite of mine, check out the guy’s other games too !)
• Anti-Idle : the game - I don’t even know
• Battle Without End - you can cancel your appointments because that’s exactly what it says on the tin