Disqus Raises $10 Million For Its Commenting System

Disqus, the popular commenting system, has raised $10 million in its first round of funding. The company’s platform lets sites — including this one — solicit comments from readers who can post them anonymously or using their log-ins from third-party sites like Yahoo (NSDQ: YHOO) and Twitter. The company is facing new competition from Facebook, which earlier this year launched its own commenting system that sites can use.

Disqus says that despite that it has nevertheless grown “at least 500% across all of our core metrics: traffic, users, and communities” over the last year. The company’s product is free, although sites pay up to $999 a month for add-ons like analytics and VIP support.

The startup says it will use the new funding to expand its “team, our products” and “on building our long-term business.” The cash comes from North Bridge and Union Square Ventures.