Everyone has heard about Facebook, Twitter and LinkedIn. The appeal of these sites is that almost everyone is welcome.
But did you know there are other digital communities that cater to smaller and more unique groups of people?

Below are a few of the more interesting or stranger social networking sites. Tell us your favourite and which one you’d most like to join.

Red Karaoke

Karaoke

If you’re a fan of karaoke, forget making a trip to a bar or owning your own game console. Practice your favourite tunes instead with people around the world, using Red Karaoke.

The app, free on iOS and Android, has an easy-to-use interface and backing music with professional quality. Users can also make their own video recordings as well as view other ones made by people around the world.

You can also change the key of the backing track when singing along to match their voice as well as the lyric’s font size.

However, it is not entirely free as songs cost credits. After the first 250 free credits you get for signing up, you need to sign up to a monthly or annual subscription.

aSmallworld

asmallworld

aSmallWorld is an invite-only social network for the elite. Launched in 2004, the community connects users who belong to the same social circle and keeps everyone else. Anyone who wants to join has to be invited by a current member and fork over an annual fee of €85. Labour frontbencher Chuka Umunna admitted he was a member of the site under a pseudonym earlier this year. Perks include deals, discounts and special access from hundreds of partners including airlines, hotels and spas.

Fubar

Fubar

fubar is an online bar for users aged 18 or older. The site now has over 9 million users and features a collection of flirtatious social games which are woven into every aspect of the on-site experience. In particular, users can make new friends, host happy hour and earn points while surfing and interacting with other members.

Line for Heaven

Line for Heaven

Users receive ‘Karma’ points, which ultimately determine who gets to heaven, by blessing or being blessed by others and by signing up others to play. Users can also confess their sins and start a cause to earn more points. Every Sunday is Judgment Day and users with the most points are awarded an eternal life online as an Angel. The site says it aims to promote religious tolerance through fun and games.

Stache Passions

stache

Stache Passions is a free social networking and online dating site that caters for moustachioed men and their admirers. Users can find members by their preferred ‘stache style’ or by their experience level.

Are there any other ones that we’ve missed? Let us know your thoughts?