Freesound, let's give it a try....

I create so much stuff all the time -- and then throw it away.  Songs.  Artwork.  Lesson Plans. 

I feel fine doing so because I'm one of those people that just has the urge to create stuff.  In the past I used to save everything--but found it to be a burden on creativity. 

Still, I sometimes feel guilty when I go to an open project and realize that I have craploads of stuff that others could possibly use.  Soooo.....

I've opened an account on Freesound.org (the new beta site) and have begun to share some of the oddball sounds I come up with when playing around with various instruments and Audacity.  Check it out.

Imagemagick

This method was sooooooo much easier than using GIMP or Photoshop.

Install it and then navigate to the folder where the pictures you wish to resize are located. Type:

mkdir resized

This will create subfolder called resized in that directory. This is where your resized pictures will be located. Now type:

find . -name "*.jpg" | xargs -i convert -scale 50% {} ./resized/{}