Mac OS X has some really awesome features, as most of you know.  However, I just came upon a new way to make a screensaver that really impressed me.  I want to thank MacMost for this awesome tip.  I will show you how to create a photocast in Flickr and then push that photocast feed into your OS X screensaver.

What is a photocast?  It’s a RSS feed with any tag(s) you want which will then pull all Flickr photos worldwide with the tag(s) you ask for.

In the example I have below (the video), I created a Flickr photocast with the tag of ocean.  A website called Photocastr will automatically create your photocast feed.  It’s really easy.  Once I created my photocast feed (the most 50 recent Flickr photos with the tag “ocean”), I then insert the feed into iPhoto which causes iPhoto to subscribe to the photocast.

After about 3 to 5 minutes, iPhoto pulls all the Flickr photos and then I open System Preferences up and click on Desktop/Screensaver.  I then scroll down and voila!  My Flickr “Ocean” Photocast feed is in my screensaver and now I have a really cool photo screensaver (I chose the “mosaic” option) that displays the 50 most recent ocean-tagged Flickr photos.

Here’s a quick demo to show you how easy it is and how cool the screensaver can be!  Enjoy!

Choose Full Screen for an easier view… please note, it “grayed” out only on the first 3 seconds of the video, it will correct as soon as you start watching.