AP Stylebook adds 42 new guidelines for social media

(Mashable) -- The AP Stylebook has released its new social media guidelines, including the official change from"Web site" to "website" (a move first reported back in April) and 41 other definitions, use cases and rules that journalists should follow.

Among the more interesting changes -- at least from a grammar and style standpoint -- are separating out "smart phone" as two words, hyphenating "e-reader," and allowing fan, friend and follow to be used both as nouns and verbs.
Beyond that, the AP has also defined a number of acronyms that are commonly used in texting and instant messaging. While most of them should be fairly well-known to regular web and mobile phone users (ROFL, BRB and G2G are among the definitions) one actually was new to me: POS.