What kind of spider can this be?

I know it can be hard to tell just from looking at a blurry picture. I couldn't get my camera to focus on it and it kept moving. It is very small about half a centimeter long. I keep finding bigger ones that look just like it up to an inch long. They are kind of hairy. Can anyone point me in the right directon to find out if they are dangerous. I live on Long Island (Suffolk County) NY. Thank you. THE PICTURES : http://i222.photobucket.com/albums/dd320...

It would also be useful if anyone could provide me with pictures on the net to compare it with.

a jumping spider =]]
they are harmless so don't worry about it.

you can tell its a jumping spider because:
1 its head is nearly bigger than its body.
2 its small, with short hairy legs
3 it has two eyes that are much larger than the rest.

they come in a variety of colors and patterns.

From the picture the short legs make it appear that it is a jumping spider. But it must have the 2 large eyes(and 6 small ones) that schools noted. Otherwise there are many other spiders that look similar. Check whatsthatbug.com and pbase.com/spiders to check other photos.