SypherLink Inc., a Dublin, Ohio-based developer of automated mapping and rapid virtualization software, has raised $3.5 million in Series B funding. Stuart Mill Venture Partners led the deal, and was joined by return backers Battelle Ventures, Reservoir Venture Partners and Innovation Valley Partners (a Battelle Ventures affiliate fund). SypherLink raised a $3.5 million Series A round in 2005. www.sypherlink.com