Need context-sensitive text ads

other than google...

[jonnyr9]

I'm guessing the following applies to a lot of people...

I have Adsense on my site, but from time to time, it doesn't show ads - so they now allow an alternative ad to be generated (given the appt. HTML/Javascript).

My question is - what are the alternatives to Adsense, which show context-based ads, not trashy fastclick ads with their v.low CPMs?

I remember hearing another company was starting a scheme in competition with Adsense, but can't for the life of me find its name (perhaps its because I'm using Google to look for it!)

[Chndru]

but can't for the life of me find its name

here: http://www.webmasterworld.com/forum20/1651.htm

[Brett_Tabke]

Burst, DoubleClick, L90...

There are dozens of them out there.