Bug in competitive ad filter

Just reported to adsense team

[conjo_guam]

I have blocked a site and it appears on my site again nearly 40 days after i blocked it.

Also, one more problem i have faced and requested for help from adsense, which was already dicussed umpteen times on this board.

I have text on my website, describing my services. Surprisingly, i see ads from other websites providing similar services. This is one drawback of contextual ad technology. What they need is 'Complementary ad technology'
What i mean by that is,
Suppose, my website is about Travel tips, then ads should be about travel tickets, Motel accomodation etc.
If my website is about Newspaper, then ads can be anything except newspaper ads from competitors.

I hope, they should do something on these lines.
thanks
Adsense publisher

[hunderdown]

Complementary ad technology is an interesting idea, but how would you put it into practice? Every site on the web would have different ideas about what would be the appropriate "complementary" subjects. And Google does things with an algorithm, not manually--this seems like too fuzzy an approach to be reduced to an algorithm....

[conjo_guam]

This is not impossible to implement. This can be deduced to an algorithm, but the database of complementary ads need to be built overtime. This can be an ongoing project.
Like how, each search engine updates their indexes at regular intervals, google can also update its database about complementary ads for each specific category or service type. This technology do need manual work. Its not 100% automatic.