Giving itself more time to grow and mature as a business, Foursquare just took $41 million in private equity. “We’ve got a ton left to do,” Foursquare founder and CEO Dennis Crowley stressed in a Thursday blog post. “We’re building tools for local businesses to connect with their customers. We’re making search better, every single day. We’re building that location layer for the internet… This takes time and a lot of work.” “The news … puts to rest speculation that has been swirling for over a year about how the company needed to raise money to avoid running …