Westwood launched an OurCommonPlace.com website last month. Administrators say the aim is to help bring residents together through the online community bulletin board. Such sites have been spreading around the state since two Harvard students founded OurCommonPlace.com in 2009. Joining the community is free, but access is limited to those with a Westwood address. Westwood’s site already has several hundred users and is reachable only by password upon registration. For more information, or to register a profile, go to www.ourcommonplace.com/Westwood.