Seesmic, the popular toolset used to manage brands across social networks, has just received a US$4 million investment from salesforce.com and Softbank Group.

Seesmic and salesforce.com are said to have worked closely for more than six months in an effort to create seamless integration between Seesmic Desktop and Salesforce Chatter, which has just gone live.

By integrating with Chatter, Seesmic Desktop will enable salesforce.com users to view comments that customers have posted on Facebook and Twitter.

"Salesforce.com has become a valued partner as we work together to bridge external and enterprise social communication with Chatter. These investments will enable us to reach more enterprise customers," said Loic Le Meur, CEO, Seesmic.