How Do I Block Unwanted Text Messages on My Cellphone? [Ask Lifehacker]

Dear Lifehacker,
I'm getting stupid texts from people I don't even know and I can't get them to stop. It's costing me money! What can I do to block them from texting me? More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/2LrRDis3EsY/how-do-i-block-unwanted-text-messages-on-my-cellphone

VERIFONE HOLDINGS VEECO INSTRUMENTS VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES UNITED ONLINE UNISYS TRIQUINT SEMICONDUCTOR