An estimated $5.3 billion will be spent on online B2B advertising in the US during 2009, according to a recent report from online marketing firm eMarketer. For small to medium-size business (SMB) owners looking for a way to get the most advertising bang for their buck, South Norwalk, Conn.-based Inflection Point Media (IPM) is hoping its launch of a vertical ad network aimed at midmarket companies will give SMB owners the tools they need to reach clients.

IPM uses search and behavioral data to identify business buyers and retargets ads related to their proven purchase intent, drawing from nearly 32 million monthly users in its portfolio of sites. “We help marketers reach business buyers just at the right time to influence their final purchase decision,” said company CEO and founder Chris Hulse. “In the current economic downturn, marketers are looking for the most efficient and effective ways to get their message in front of potential buyers at the right time.”

Web sites such as American City Business Journals’ network of more than 60 sites, SBTV.com, and StartUpNation.com are part of the IPM network for which they earn incremental revenue in a way that does not cannibalize their existing sales efforts. Small and medium sized business (SMB) owners who visit the IPM network of sites identify themselves as potential buyers through search and navigation behavior.

IPM collects this anonymous data and creates vast audience segments of buyers with common interests and enables marketers to retarget them anywhere across the Revenue Science’s Targeting Marketplace. “Every ad impression must count,” Hulse said. “It is important that you identify true in-market buyers and not just tire kickers.”

Read the rest of this article on eWEEK.com.