Nebula had a meltdown of their power supply setup at the Lauttasaari facility last night. Due to the outage several Finnish web services went down yesterday at 7pm (GMT +2). The services that got hit included Jaiku, Scred, Ampparit.com, telkku.com to name a few.
In total, the outage affected about 1500 servers and 8000 of their customers. The web services seems to back up and running by now.