There are a lot of different professional associations out there seeking to provide value to their members. Some do so by helping to lobby for regulations and laws that will benefit their membership. Others provide certifications or have peer-reviewed academic journals that serve as gateways to the industry.
Then there are professional associations like AIIM, ARMA, and ASAE whose primary purpose is helping industry professionals be effective through education. This education takes place in the form of training, publications, seminars, and webinars. There may be a certification but it is rarely required for advancement in the industry.
The problem is that there is fresh competition from for-profit communities and ad-hoc local groups who use Meetup to find members and organize. Information on how to succeed in any industry is readily available on the Internet. Traditional associations are no longer the sole-source for networking and information.
How can associations compete when people no longer need a middle-man? They have to go local and make things personal.