The 2011 edition of Oxford English Dictionary (OED) has added two most commonly used abbreviations used in online chatting and communication – LOL, OMG. With the rise of short text messages and micro-blogging platforms like Twitter, such short forms are gaining popularity day-by-day.
According to OED website, these new words LOL (laughing out loud) and OMG (Oh my God, gosh, goodness, etc.) join the other previous entries like IMHO (in my humble opinion), TMI (too much information), and BFF (best friends forever) in the dictionary.
Internet generation has created a lot of new and widely popular words waiting for their entries in the official dictionaries. In 2006 to google was officially added to Webster and Oxford Dictionary. Similarly
Dictionaries usually add new words but never take them out even if they are obsolete.