To get past your problem of your not "brainstorming" succesful ideas, I suggest you watch these slides by the creator of the Business Model Canvas:

http://www.slideshare.net/Alex.Osterwalder/successful-entrep...

there are a ton of resources on Stanford's Entrepreneurship Corner:

http://ecorner.stanford.edu/

and Steve Blank's blog:

http://steveblank.com/tools-and-blogs-for-entrepreneurs/

Steve Blank wrote a book called Four Steps to Epiphany which is really good and advocates his "Customer Development" strategy:

http://www.stanford.edu/group/e145/cgi-bin/winter/drupal/upl...

You'll see a common theme on most of those sites, which is basically to listen to the customer, "get out of the building" and validate your idea early (thus, the MVP)

If you need some inspiration for brainstorming and protoyping, Stanford has some advice on their Design School site

http://www.gsb.stanford.edu/exed/dtbc/

and some material is available here:

http://dschool.stanford.edu/wp-content/uploads/2011/03/Bootc...

look up "pretotyping", and the book Pretotype IT, it will inspire you:

https://docs.google.com/file/d/0B0QztbuDlKs_ZTk2M2RhZWItYzk3...