Greg Costikyan is a game designer responsible for titles like the Star Wars Roleplaying Game, the Paranoia rpg, and more. His web site, a blog that often includes content about electronic and non-electronic games, also features Dot Boom, a free card game.

Here's a description of the game from the rules introduction: "In Dot Boom, you play a vulture [uh...] venture capital firm, trying to make as much money as possible before the Internet bubble bursts. You invest in companies, take them public -- and the player with the most money at the end of the game wins."

You can download the rules and the cards for Dot Boom from Costikyan's site.