The spending spree at Microsoft continues, but this time Steve Ballmer and company probably just wrote a check to buy YaData, an Israeli startup that makes marketing software.

The deal is expected to help Microsoft provide its advertising clients with richer targeting capabilities. YaData helps marketers define and target micro segments of consumers.

Given Microsoft's pledge to go after engagement, the purchase seems to make sense, according to a post at TechCrunch. But so far Microsoft hasn't been keen to add details to its engagement mapping plan.

According to The Globes, an Israeli business newspaper, Microsoft paid somewhere between $20 million and $30 million for the company. But Microsoft has not confirmed the price.