There is a thin line between advertising and promoting something that the users here might find interesting
I dont see the seperation, If they are interested in it..it mean's they are being advertised to.
Basically the policy is saying as long as someone provides something that is interesting to the members then its ok to advertise it here.

I only bring it up because I soon will have Premium WB suites on my site and I would like to clarify whether it would be ok to post releases here or even list my site in any posts or comments.

The old..what's good for the goose" thing..u know. WC has also advertised somewhat competitive.. to itself.. software in the past too in it's articles. I would be interested in knowing how the policy is worded.