What is your spam management arrangement?

[j1mmy]

Over the past 2 or 3 years since tha launch of my board, I have basically been verifying the posts by new users and then allowing them to post freely once they can be verified to be human. Naturally, because of this, there is a delay to when they post, and when it is actually shown. Now that my board is beginning to grow, and the lack of time I have in verifing posts, members are wanting an immediate display once they post.

I know other boards allow users to have their post shown immediately after posting/registration, but how do they manage the spam in this setup?

I need to pointers on how to fully manage spam long term. I've always had to change arrangements every 6-8 months.