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We all know that Google likes new content and also like user participation. Will it make a big difference to create a small portion of the home page with a lounge type of section. Webmasters can then use proxies or what not to make comments about the website or the product or the type of product being sold. It can be moderated and that way you can keep the lounge mostly positive.
I think if users start to see a lot of activity and comments, they will try to drop a comment or two to agree or disagree on what they are seeing. That way, you have more content, more user participation and thus more Google love, isn't it.
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