Russell Perkins (InfoCommerce Group Inc.) writes on MagazineEnterprice 360
"Unfortunately, I sense that the attraction of vertical search to some B2B publishers is that it looks simple and cheap. Get some search software (heck, Google will even license you theirs), index some stuff, and presto, you are a giant in vertical search. The reality is that you can and must do a lot more than that.
Here are some thoughts on what characteristics your vertical search offering should have if you really want to be a contender in the world of search ...
1) A well-developed strategy for identifying what third-party sites you are going to index ...
2) A serious taxonomy ...
3) Feature your own content ...
4) Go beyond the open web ...
5) Don’t forget reference information ...
6) Summarize, annotate, analyze, critique ...
7) Rate, rank, recommend ...
8) Add directory content ...
9) From their search engine to yours ...
10) Dare to be different ...
more at MagazineEnterprice 360