Todays niche keyword (and 1000 words list) is: designer jewelry
Estimated Overture Monthly traffic: 7100
High PPC Bid Price: $0.85
Download a zip file of the top 1,000
keywords from Keyword Discovery, a database that
contains 32 billion keywords.
You get the "keyword" and "count" sorted from highest
to lowest demand.
The attached list will allow you to spot sub-niches
that are more specific than the general topic above
and may have less competition.