Hi Filo,
Not sure what you are asking re advertising. So I will give a broad answer and hopefully get what you are after.
In terms of paid advertising, at the moment we are using Google Ads alone on the main site. We may I guess add them to the forums at some point, but we have to be careful to not alienate people, so the forums would have to be a lot more lively to tempt us into that. The only other form of advertising I think that is likely to tempt us is sensible banners, so Guinness if you are reading this, a nice £1,000,000 banner ad campaign would be welcomed!
In terms of promotion (what I will call uncharged advertising here). As long as you can find a link to pubs then we are realitively relaxed about posting it on the forums. I would say that how relaxed we are is proportional to how visibly you contribute non promotional material to the site, and you have long been a valued contributor to the site so we are very relaxed about you promoting your projects on the forum, preferably with a pub slant ;). I should say this isn't really that altruistic either as any life in the forums is good for the site as has been pointed out a few times.
Long term I am sure this will all evolve and in a lot of ways the community that grows here will dictate that evolution, but it is my hope that it will stick vaguely to the guidelines above.
Conrad
ps. Dave may be along to correct me in a minute as normally I would get him to check this sort of post before I clicked submit.