One of the biggest obstacles for Open Media is the lack of it not only out there but even in your own computer. This needs to change, and YOU can help.
You already have some content in your computer, be it music, podcasts, videos, office documents, etc. All you have to do is convert it to a free format and (if it's legal for you to do it) share it with other people.
If you have music, you should convert it to either Ogg Vorbis or FLAC. Look into OggDropXPd and dbpoweramp.
If you have films, clips, anything video you should convert it to Ogg Theora. ffmpeg2theora and Thoggen will be of use to you.
If you have office documents that are not OpenDocument, you know what to do. OpenOffice.org and KOffice will help you in this task.
If you have podcasts, you should convert them to Speex. dbpoweramp or VLC may be ideal for this delicate procedure.
This is, without any doubt, the most important step you can take to promote Open Media. Do it. Now.
Sing songs of praise to Operation Transcode. Help your friends (who don't think you're crazy) to do the same thing. Help make the world a better place. And next time you see that stray dog by the road, give him a pat in the head.