The best write-up I've seen is by Danny Sullivan at SearchEngineWatch. John Battelle also has a write-up focusing on paid inclusion.
If you want to try MSN's new search, it's available in the MSN Sandbox. MSN Search isn't expected to be powered by this search engine until into 2005. As Danny Sullivan says:
- The new Microsoft search engine is NOT -- NOT NOT NOT -- being used at MSN Search. It can be confusing, because along with the search technology announcement, Microsoft has also announced a new look and feel for its MSN Search site. Despite these cosmetic changes, under the hood, MSN Search itself still beats with a Yahoo heart.
- The new search engine also leaves me with a "more of the same" feeling. It doesn't take search results anything beyond what Yahoo, Google or Ask Jeeves already do, and given their maturity, do better. In fact, a fast run of the tested queries through Gigablast -- a one man effort by Matt Wells -- makes you think MSN still needs to catch up to even that service.
- A Personalized Experience. Your Search service should learn from you. What you like, what you read, where you live. Search should deliver results that are more personal and relevant to you.