If we told you that LinkedIn boasts a 2.74 percent visitor-to-lead conversion rate, would it make you consider using LinkedIn for real estate? Yeah, it sounds pretty tiny, right? But, when compared to Facebook’s  .77 percent and Twitter’s .69 percent, LinkedIn’s is positively huge. In fact, according to Hubspot’s number crunching, LinkedIn’s conversion rate is 277 times higher than Facebook’s. One of the reasons for this may be the fact that LinkedIn is pretty much business-oriented. No photos of kitties or what someone had for lunch or updates on family matters. Because there are fewer social posts, “a business’ marketing…