Hmm, perhaps this is a little harsh, but:
If you seriously can't brainstorm, and don't have any unique ideas for websites, or indeed, any ideas at all..
Then web development really isn't for you. Theres enough samey developers out there designing the same or very similar things over and over, as others have mentioned.
Why not try going into the film industry- people will always watch remakes of films
![Stick Out Tongue](images/smilies/tongue.gif)
.
One last thing. Asking to develop people's uinque ideas for them? Seriously how can you be so naive as to ask that?!