I noticed prominently displayed Microplace ads on Technorati.com today. Not sure if it is really keyword-targeted or rather context targeted. When I did searches on Technorati on Globefunder or Kiva I was shown Microplace ads.

Technorati is an interesting choice for the campaign (if it runs only there – I did not check). Technorati is mainly used by bloggers and journalists. The ads would therefore target not the individual investor but the multiplier who might write about Microplace.
I noted that the ad display is NOT using geotargeting meaning it is not only shown to US residents but to viewer worldwide (only US residents can use Microplace at the moment).

(Sample screenshot after search for globefunder)

(Another sample ad, original is larger and flash animated)