Jaiku was a social networking, micro-blogging and lifestreaming service comparable to Twitter,[1] founded a month before the latter.[2] Jaiku was founded in February 2006 by Jyri Engeström[3] and Petteri Koponen from Finland[4] and launched in July of that year. It was purchased by Google on October 9, 2007.[5][6] When Jaiku Ltd was an independent company, its head office was in Helsinki.[7] Jaiku