Extract audio from video
This service is really hand if you download youtube music videos.
I like to reduce the resolutions of my images before sharing them. The following Service makes this a breeze.
Convert images to JPG
A calendar event that checks Time Machine
Generate Dropbox URL for new files
When dropbox added their new social comment feature I had to create my own folder action. So when I take a screenshot the links gets placed in my clipboard.
Reduce image file size
I love this app. It lets you reduce image file size from the context menu. ImageOptim
Upload image and copy URL to clipboard
This can be used as folder action or service. Perfect for hosting your own screenshots.