Kelsey Group, a Princeton-based provider of research and consultancy services in the local media space, including online (we have quoted their work many times over the years), has been acquired by Chantilly, VA-based BIA Financial Network, the financial and strategic consultancy firm for media and communications industries. Financial terms were not disclosed. Kelsey will operate under the newly formed subsidiary BIA Advisory Services, which will also include BIA Consulting and BIA Research. John Kelsey, who founded the group in 1986 with his wife Pam, will oversee conference planning and execution. More details in release.