The Hygienic Arts social network is bringing new life to the arts scene in New London, Connecticut. The organization behind the social network has been active for a full 30 years, and their new social network has already attracted 250 members. Their goal: to create a dialogue about the arts, taking advantage of the features built-in to Hygienic Arts. Members upload their own photography, paintings, and drawings to the Photos section, including artwork portraying the town itself. The Events section is a great place to learn about upcoming happenings in the New London art scene. You can even check out the official Hygienic video in the social network’s new and improved video player.

We blogged about the MySDScience social network back in August, and they’ve compiled more knowledge and members since. This scene for San Diego science has a host of info covering RNA, the mental development of rhythm recognition, and hundreds of other topics. Currently, the network crew is gearing up for the San Diego Science Festival starting in late March. If you don’t want to read, there are plenty of dedicated video explanations, even an entertaining and thorough music video about the immune system.

As we noted the last time we blogged about Recruiter Earth, it’s only natural for recruiters to find a home on a social network. Members of Recruiter Earth are offering each other training, celebrating their certifications, and networking for referrals and candidates. There’s also some really cool and unique content, like a video of a phone call by one of the country’s top recruiters to analyze and learn from.

We wrote about Babble Playground the week it launched a year ago, and they’ve picked up more than 2,250 members since. This social network is for readers of Babble.com, the magazine for a “new generation of parents.”

The American Marketing Association has created a social network for Boston that’s already 625 strong, and they’re helping each other rise to the top of the business scene. Events to come include a seminar on effective use of LinkedIn and a workshop on search engine optimization, and members have been posting thoughts on mobile advertising and recovering from recession and even video analysis of how websites are like pies.

It’s been more than 48 days since we last blogged about the 48Days.net, and according to this social network, that’s more than enough time to have started a business. Dan Miller, “your friend in the journey,” posts weekly updates to keep members motivated, and members have responded by getting involved in everything from church consulting to furniture refinishing to marathon running. We don’t doubt that their mutual support on 48Days.net has been a key part of their successes.