richyrich - whilst I am in the UK, all my ad groups are global...
It's a very valid point though, if 'everyone else' is turning off their content network reach, then all it does is leave that aspect of the marketplace open to others.
In my case I perceive the ad group with the 5% content ctr as a unique situation. None of the other ad groups come anywhere near this figure. Why is it this high? I really don't have a clue because I've no idea where it is being shown...
Instinct tells me though that, as all our ads are very, very, specialised, this particular ad group must be showing on a few sites highly focused in areas relative to ours - otherwise we just wouldn't be getting the clicks.
Point being though, sometimes it can work - and work very well. Now if only I could choose where it got shown on the content network..
With that in mind, a pooling of content sites by generic sectors would be damn useful...
Q: "Do you want your ad to show on content sites relative to science?"
A: Yes, please.
Q: "Do you want your ads to be shown on sites devoted to sports?"
A: No thank you!
In this scenario, the likelihood of you getting useless impressions, because of the many contextual variations of key words, would be pretty much negated because your ads would only be showing on sites where they are contextually relevant.
Combine this with the use of negative key words and you are enhancing the ability to target your ads in a very useful way indeed.
Content might even increase it's credibility...