Habbo (also known as Habbo Hotel) is a social networking website aimed at teenagers. The website is owned and operated by Sulake Corporation The service began in 2000 and has expanded to include 32 online communities (or "hotels"). As of June 2008 over 118 million avatars have been registered. There are an average 8 million unique visitors monthly, and 75,000 avatars are being created every day. The 100 millionth avatar was created on Habbo UK in June 2008. Habbo`s origins are said to be from Mobiles Disco, a 1999 hobby project by creative designer Sampo Karjalainen and technologist Aapo Kyrölä for a Finnish band, a virtual chat room running on Aapo`s Fuse technology. After having been contracted to design a virtual game and chat called Lumisota (Snow Wars) for a Finnish ISP, Elisa, they were contracted for another project. They developed Hotelli Kultakala (eng. Hotel Goldfish) with a small team of developers and it was launched in August 2000 on the ISP`s web portal.

Aapo and Sampo and Dee Edwards, an entrepreneur from the UK, wanted to create an international business based on the virtual hotel concept and worked on a plan in autumn 2000 and raised finance. By the end January 2001, Habbo Hotel had been launched in beta mode. The new hotel launched officially a few weeks afterwards, aimed at the teenage market, , with marketing and payment partners in place, run from a HQ in London. It had a new credits system and community and safety features. The next hotel was launched in Switzerland a few months later, in four languages. It has since been expanded to over 31 countries in five continents, including Hotelli Kultakala in Finland which was made into a Habbo Hotel and has been invested in by venture capitalists.

In May 2006, the service, along with its domain names, were renamed to Habbo. In August 2007, Habbo`s Chinese community closed down temporarily, the first time a Habbo website has closed. The challenging Chinese market and high operational costs led to the decision of closing the service. Customers in China were redirected to other Habbo communities. In December 2008, Habbo`s Russian community announced it was closing in February 2009 as a result of low numbers. Those on the site with furni (virtual furniture that can be used to furnish rooms in the hotel that are bought with the use of Habbo Credits or Coins, that can be exchanged for real money given to Sulake) have been told they will receive credit codes for use on the USA Habbo community.

Many activities and features are available on Habbo`s website, that do not appear on the Hotel itself. The community section of the website features regularly updated news and events regarding the service. Recommended chat rooms, popular group pages and user pages and user interest tags are also accessible from the website. The website has seen over five different versions. Over the past three years, the website has become more involved with the hotel. Before 2006 users logged in on the hotel, now they log in via the website, which links them to the hotel. The website provides information on users` credit balance, groups, rooms and even friends.

Habbo has long been an online community for roleplayers to act out certain actions and scenarios. Since the beginning, Habbo has hosted quite a few roleplaying rooms. Many are based on military forces around the world, such as the US Army. Others are based on gangs and crime organizations(e.g. the Italian Mafia), fantasy and science fiction. Prior to the existence of a "RPG" room floor, rooms that were specified for role playing were usually placed in one certain floor intended for other types of rooms(games, parties...). Roleplay began in habbo.co.uk, whereas Star Wars was the chosen RPG to be created, and soon popularized around other hotels. Star Wars became one of the dominant and most popular RPG`s, another was Naruto, which was introduced to wikipedia by the entire role-playing community as a whole.