New Google Adsense Ad Targeting Tags

[BNWFinance]

Has anyone looked at/seen this:

https://www.google.com/adsense/support/bin/answer.py?answer=23168

Has anyone used it to properly (or improperly) target AdSense ads?
I didn't see a publication date on the article so I have no idea if this is old news or not...

 

[pfgannon]

Pretty sure thats fairly old.
And I do believe it works,though I never monitored it much on sites I've used it on.

 

[Jan]

That was new to me a few months ago!
I put that on a blog that wasn't getting relevant ads and it really helped.

 

[barman]

Interesting. Does that mean its ignoring your title tags?