Need opinions/ ideas

So, I bought the domain erri.es and added sub-domain 'b' to it, so it's obviously b.erri.es now (berries). I was wondering if it was possible to make a website like digg.com (social bookmarking) but instead maybe something could be coded to make it so any website someone visits it can be display on b.erri.es, obviously only if they wanted to.

Or any ideas I can use it for.
acne medicine
Salons Raleigh