Tens of millions of people use Twitter on a regular basis. While most agree that the numbers of users are inflated by spammers and inactive users, it has still established itself as a major player in the world of social networking.

The site has gone through many challenges over the years. There were times when it seemed like Twitter wasn’t going to make it at all. The site was down, often for hours a day. People were coming on, checking it out, not understanding it, then leaving. There was no recognizable revenue model. A year or two ago, many thought Twitter was doomed.

Most of the naysayers are silent now. Twitter has reached a tipping point that has secured its immediate future. This is the internet, so you never know when the hero will become the zero, but as of today, Twitter’s future is bright.

This infographic by our friends at BuySellAds takes a look at the three big questions – why, why, and how. Click to enlarge.