Twitter, the quick blogging tool that allows users to write what they are doing in 140 characters per less through messenger software, mobile phones, and on the web has supposedly raised $15 million.  The $15 million puts Twitter at a valuation at $80 million.  An unnamed investor led the round and participated with previous investor, Union Square Ventures.  With this round of funding, that puts Twitter at above $20 million in total funding.

The new investor is suspected to be Spark Capital.  Some of the hints that lead to Spark Capital being the new invesot is that Bijan Sabet was in San Francisco visiting “a very special company.”  Evan Williams, co-founder of Twitter also “Tweeted” that he was “Walking down Newberry St.” in Boston, Mass. which is where Spark Capital is based.

Keep reading Pulse 2.0 as the story develops.

Information Sources:
[1] GigaOM: Twitter VC Funding Done. Raises $15 MM by Om Malik
[2] TechCrunch: Highly Likely Rumor: Twitter Closes Third Round Of Financing From Spark Capital by Michael Arrington