Social Brand Index

Identi.ca

Open-source microblogging platform.
 
Shopping

Bargainista (Canadian) http://bargainista.ca
Format: Microblog

Platform: Open source
 
Funding: No information available.

Ownership: Privately held.
 
Competitors: Twitter, friendfeed.com, Plurk.com
 
In their own words:
"Identi.ca is a micro-blogging service. You can use it to write short notices about yourself, where you are, and what you're doing, and those notices will be sent to all your friends and fans."
 
-- reposted from http://identi.ca/doc/faq