What other services allow the user to pay for specifically requested
research?  I am more interested in detailed research on specific
topics rather than links or one line answers to obscure questions. I remember
hearing about a website that drug companies used to post rewards for
answers to very difficult scientific problems.  I am also trying to find other
similar services for in depth specialized business, medical or
scientific research.  I am also interested in services that perform
company specific investment research.  Thanks.