We have with our supplier more then 12.000+ products in stock and on a daily basis new products are added. On this -Busines Tools- site I narrowed it down to only the products that are related to business (niche).
I can imagine that you are looking for a different category of eBooks, content, software or video-, training for yourself or to build your business-niche on.
Because I make use of a voucher system you can use these vouchers also for an other category of products (see "How to Order")
On the right side, you can see some examples of the categories.