First, I make a central site. On this central site is the rules of the game, and a big button saying 'Start'. The start button leads to a clue, or a different site, or a puzzle/quiz (most likely the latter). Then, depending on what your answer for the puzzle/quiz is, you get another link. Now, this link leads to the first location in the game. Locations can be any form of communication between multiple people, like forums, chat applets, etc. etc. Let us take a forum as an example. The location could be anywhere between a whole invisionfree site, to a single forum, to just one topic. Then that will a place to put links to quests and other locations, or anything you want involving the game. And slowly, this web of links and puzzles will grow, until the game has spread over the entire internet.
Now you may ask, why will an admin of a site want a topic or a forum from my game on their site? Well, I thought of that too. For example with SeeD, I might be able to use the Roleplay forum, or for other sites, I could use an Off-topic forum. And, for sites that wanted it, I could make bigger locations, like a forum or a category. Why would someone want that on their site? Well, they would have all the players of the game registering on their site, greatly increasing activity. And also, I would have some of the members on that site joining the game. Win-win situation.
Of course, there are some problems. It would be hard to make sure each player kept their identity constant throughout the game. Another problem would be that a game like this could already be out there. And lastly, and probably the biggest problem is with that central site. To run a big site like that, well, the problem is, I...erm...don'thaveanymoney.
