There are social media outlets for pretty much everything these days. Whether it's to raise your business profile on LinkedIn or promote your brand on Twitter, there is something for everyone.
If you're into sport, particularly individual sports, then take a look at Athlinks. It's tagline is "social media for endurance athletes". But it doesn't matter what distance you race, you can still use it.
I use Athlinks to log my race times. On Sunday, I finished my third City-to-Surf event in Tauranga and, when I got home, I was keen to see how that finish stacked up against my previous races.
Instead of going to the event website and trying to navigate my way through - nothing against Event Promotions - I turned to Athlinks. Every race I've finished, I have claimed results and can find them all on one page. It was as simple as selecting running and the distance - and there they were.
As to social media, you can "friend "other people in your sports circles and set them up as rivals if you tend to race against them a lot. You can find your next events, add that you will be racing, and even set yourself a predicted finish time. You can "rival" anyone you race often, they don't have to be a friend. And if you're in a club, you can join your club's profile on Athlinks.