Websites to Jazz up Photos?

I love taking pictures. It is a Hobie of mine. I find it a wonderful art. But, I'm very inexperienced. I don't have a great camera. Just a small Nikon one. Not one of those huge fancy black ones. I'm running out of ideas to take a picture, and have it be creative and fun to look at. If you guys could give me some websites to add more color, put effects into it, and blurr out the back round? I don't know, I just want some amazing photos to show off. I hope this isn't too confusing, or something, but yeah.

Try Picnik…

http://www.picnik.com/

Picnik, Photoshop
Also you can do it on an iPhone, iPad, iPod:
Here are some photo editing apps:
Pixlromatic
Photo touch
Picture effects magic

But I strongly recommend picnik! Its what I use for all my photos