I have a Synology DiskStation DS211j and I have written these guides to make my Synology NAS more useful.

How to install compiled programs on a Synology NAS
How to use ipkg
How to install pyLoad on a Synology DiskStation DS211j
Share videos from your Synology DiskStation and watch them on your Android phone

If you wish to try a live demo of Synology DiskStation Manager, go to Synology website clicking on the link and login using the information from the page