just got several copies of the latest MSN AdCenter Newsletter...
here's the keyword match types they explain there...
Your keyword term matches the searcherís phrase exactly.
Phrase match Your keyword term and the searcherís phrase contain the same words, but in a different order (or with words in between).
Broad match Your keyword term includes all of the words in the searcherís phrase in any order.
(ps - the second bold is technically true, but a really contorted and misleading way to summarize it - since extended / expanded broad match is inherent, it's like saying banana creme pies are nothing but crust. that 1st bolding, well, their proof reader was out sick this week.)
[edited by: RhinoFish at 6:25 pm (utc) on Jan 25, 2012]