Twitter pulls off April Fools' Day trick

Twitter pulled an April Fools' Day prank yesterday by pretending it was going to charge users for tweeting vowels.

The social networking site made the announcement on its official blog, stating there were plans in place to charge people $5 a month to use a "premium service" whereby customers have the luxury of using contestants and vowels, but people who decided against signing up would have to make do with the vowel-free option.