Since its January 2001 inception by Dr. Larry Sanger (with some software and server help from Jimmy Wales), Wikipedia has grown from just a handful of crowdsourced encyclopedia articles to over 4.3 million articles in the English-language version alone. Hundreds of millions of Internet users have visited Wikipedia, despite critics arguing that you simply cannot trust the information found there.
Whatever your perspective on Wikipedia, there's one recurring theme that you'll hear about the biggest reference site on the web -- that it's always improving.
Or is it?
Let's take a look at the five biggest failed opportunities for Wikipedia to improve -- policies or upgrades that should have been implemented, but weren't. Click to "view the photos", which will take you through the list of failures.