SEOmoz announced today that it has acquired GetListed.org, a Portland-based software company, for about $3 million in cash and stock. Earlier this year, SEOmoz indicated it would be going on an acquiring and hiring spree.

In August, it acquired Twitter analytics company Followerwonk. Now, it’s search engine listing company GetListed:

SEOmoz CEO Rand Fishkin said, “Small businesses don’t always know where local data is hiding. They don’t understand why customers can’t find their information on the web or on their smartphones. GetListed puts power in the hands of local businesses—they make data essential to inbound marketing channels easily accessible. We’re absolutely thrilled to fight the menace of data obfuscation at their side.”

The announcement comes with this “local signage-themed ultimatum” from the companies: