This report provides membership marketing data from over 230 trade associations. It finds that 49% of associations reported an increase in membership over the past year. The top reasons members join trade associations are networking and advocacy. Word-of-mouth and personal sales calls are the most effective recruitment channels. 44% of associations reported no change in member renewal rates over the past year, with over half having a 90% or higher renewal rate. The biggest challenges to growing membership are communicating value and overcoming negative perceptions of the association.