seeking a mentor

I need somebody who is willing to provide me support and advise so
that I can start to build my own online businesses.

Question:  How do research which of my several ideas will give me the
greatest return?

I plan to produce my own e-books and software (eventually), and act as
an affiliate for others e-products.  I was once told to do what you
love', so with that in mind, here are some of the things I love and
good at;

o    Design and creation of simple(?) software packages
o    Website design
o    Creation of attractive looking online auction adverts
o    Computer application and PC support
o    Lateral thinking and problem solving
o    School science projects and demo's (science fair I think it's
     called in the US?)

I would also appreciate a website critique, as my sales copy doesn't
cut the mustard.  I realise I need to capture visitor name and e-mail
address, any other suggestions??

URL:  http://www.crossword-cracker.co.uk/

Many thanks in advance.

Glenn Leader