Koprol

Koprol, since 25 May 2010 called Yahoo! Koprol, is an Indonesian social networking service, allowing users to connect based on location.^[1] Mobile users can use the site as a positioning service, without the need for a GPS receiver. Once logged in, users can see other members who were in nearby location.^{[citation needed]}
In Indonesia, this application has been released in Jakarta, Bali, Bandung, Surabaya, Surakarta, Sidoarjo, Yogyakarta, Semarang, Surakarta, Bengkulu, Medan, Banda Aceh, Palembang, Makassar, Balikpapan, Cirebon, Papua, as well as foreign countries such as Singapore, and USA.

Early establishment

Koprol development was started in July 2008 by PT SkyEight Indonesia.^{[citation needed]} It was specifically created for mobile devices.^[2] It was released in February 2009, allowing users to post their present location and short status updates, and see other members in the same location. At that point, the location data was limited to Jakarta, with plans to expand it to other Indonesian cities such as Bandung, Yogyakarta, and Denpasar. Founder Satya Witoelar states as he and co-developers Fajar Budiprasetyo, Leo Laksmana, and Daniel Armanto developed the site, they took inspiration from a variety of competing foreign social networks, including Plurk, Twitter, Lifestream, and Brightkite.^[3]

Acquisition

On May 25, 2010, Yahoo announced that it had acquired Koprol for an undisclosed value. Yahoo had previously considered a US$100 million acquisition of Foursquare, a US-based location-based social network. Yahoo spokeswoman Rose Tsou stated that "Koprol was uniquely designed for mobile phones and within a year has already built a strong user base" and indicated that Yahoo plans to introduce the service in other markets.^[1]
Koprol integrated Yahoo itself since before the Yahoo Open Hack Day event in 2009, Koprol became one of Yahoo's local partners using multiple technologies such as the Yahoo API: Yahoo Fire Eagle, Yahoo Login, and Yahoo Contacts.

Miscellaneous

Koprol means Somersault in Dutch. Indonesia is a former Dutch colony. Amongst Indonesian internetusers, 'koprol' is slang for ‘an act of changing physical location or position’^[5]