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.

[17] On November 29, 2011, a group of former users launched Jaikuarchive.com – The Jaiku Presence archiver[18] "to save an important part of our digital heritage."

[21] Jaiku released their API, which allowed programmers to make their own third party software components such as Feedalizr.

One of the main differences between Jaiku and its competitor Twitter was Lifestream, an internet feed that shared users online activities utilizing other programs such as Flickr for photos, last.fm for music, and location by mobile phone.