Wikipedia is a great resource for finding a quick answer to a random query, but it's also an incredible time sink. Wikiweb, an iOS app from developer Friends of the Web, makes it even easier to waste away your day in the crowdsourced encyclopedia by not only providing the information you're looking for, but by letting you create a "web" of related entries to let your curious mind run free.
As described by FastCoDesign, searching for a topic will create a hexagon icon that, when tapped, will create a series of additional hexagons that represent articles that are linked within the original entry. Tapping on any of the resulting icons will expand the web even further and long tapping will bring up the Wikipedia entry. Once done planning out the rest of your free time, you can share your web via Twitter or email. Wikiweb is available now from iTunes for $4.99, in which a portion of all proceeds will be donated to the Wikimedia Foundation. Take a look at the following demo of the app for a preview of how you'll spend the next hour or so.