Commenting startups Disqus celebrates its birthday with $10M more

Disqus, a startup offering a commenting system across a number of sites (including VentureBeat), says it’s turning four years old this week, and it’s using the occasion to reveal some big numbers. Not quite the biggest, but perhaps the most important is the fact that the company has raised $10 million in new funding from North Bridge Venture Partners and Union Square Venture Partners.