One Cambridge nonprofit got a new free website. Another got an overhaul of its database. Last year, over thirty local nonprofits got technical projects implemented for free, completed, delivered and tied up with a bow in 48 hours, thanks to New England GiveCamp at Microsoft. Over a hundred technical professionals from all over the East Coast will gather by the Charles River again April 29-30 for Microsoft Cambridge’s New England GiveCamp 2011. They will sleep on floors, camp out in conference rooms and halls and mainly, donate their skills and time to local nonprofits and deliver new websites, databases and other technical projects in a 48-hour whirlwind.