Reef hobby owned by vendors?

[syncro]

Is the content of most reef blogs and forums directed by aquarium product vendors?

From The Truth About Orphek & Aquarium Product Marketing:

Reef Central: $500-1000/month, ~$1/click (your product cannot be discussed on RC if you haven't paid them)
ReefBuilders: $400 for a "review" (all of their reviews are paid for), $400/month for ads so the staff will continue to talk about your company/products
Nano-Reef: $150/month
WetWebMedia: $200 month (WWM is an excellent source of info and mostly stays out of drama)
GlassBoxDesign: $200-400/month (GBD doesn't require payment for a review, however if it is a competing product to their sponsor's it will receive a negative review)

How does canreef compare?