Not sure where else to put this.

For those of you that have a Kindle/Nook/ereader.

What made you select your particular choice? Can a Nook read Kindle books? Can any tablet be used to read any format or are some formats proprietary? Can one read newspapers on an eReader of any brand?

Can one use the Kindle Fire to email photos? I'm referring to photos taken with a digital camera. Is there a USB port or something to transfer photos from the camera to the Kindle?

I've been monitoring eBay for an under $20 including shipping Kindle but haven't been lucky so far. If I spend more than that I think I would prefer a tablet, maybe the Kindle Fire, to check email and forums like this one. But I'm not ready to drop the $300+ to get it and accessories. So far my netbook is still working (well two keys have died but who needs the number zero or to close parenthesis?) but I don't usually read books on it. I do have regular travel situations where a small eReader would be nice to have but I hate having to carry too many things around.