Including “informal” and “geek” in the title is probably redundant. In any event, Adam Green, Pito Salas and Mark Doerschlag have a geek dinner coming up on February 15th. They’ve invited Boston area geeks to meet up with them at the Top 10 Sources office at 66 Church Street in Harvard Square. It starts at 6:30 PM. There’s more info on Adam and Pito’s weblogs.