Wikipedia is a big time waster. (Not, I suspect, news to anyone here.) One thing leads to another, each article hyperlinking to another half-dozen, until before you know it, you’ve squandered another precious hour (to borrow a phrase from Tom and Ray Magliozzi) tracking down details of Urdu phonology, or something similarly abstruse. (Actually, I have no idea whether Wikipedia includes anything on Urdo phonology… wait… there is is.)
So, yeah, pretty much everyone who spends time surfing the Web knows how addictive Wikipedia can be, or YouTube. But I think I’ve now stumbled onto the mother lode, the heroin-mainlining of Internet addictions, at least for us devotees of the various literary/narrative media. I speak, of course, of TV Tropes, described on Wikipedia as
a wiki that collects and expands on various conventions and devices (tropes) found within creative works. Since its establishment in 2004, the site has gone from covering only television and film tropes to also covering those in a number of other media such as literature, comics, video games, and even things such as advertisements and toys.