Tech media publishing company Ziff Davis announced today that it has acquired Toolbox.com, a popular IT online community network.

“We’ve added a critical piece to our puzzle with the acquisition of Toolbox.com,” said Ziff Davis CEO Vivek Shah. “The IT community relies on itself to make decisions and be informed. Owning the leading professional networking site is a significant strategic advantage for Ziff Davis.”

Toolbox.com will become part of Ziff Davis’ B2B Focus, which was formed when the company acquired Focus Research.

This makes the fourth acquisition for Ziff Davis in the past year.

Toolbox.com has 2.3 million registered members.

Ziff Davis sites already reach 40 million per month. Properties include: PCMag, BuyerBase, LogicBuy, Geek.com, ExtremeTech, AppScout and B2B Focus.