ecademy and other business social networks

[Stephanie]

Of the networking forums I have joined so far, ecademy seems to be the most successful, in terms of has a lot of members, seems very active. However they claim it is better to pay for the higher levels of membership to really gain benefit.

Has anyone joined this one and any experience of paying bringing in more business? Or generally of paying to join networks like this?

Cheers,
Stephanie