Create plaintext notes and select one of the various syntax hightlighters.
Fancy Richtext Notes
Create Richtext notes with tables, images, colored text and much more..
Assign labels to your nodes. That allows you to limit a search to notes with specified labels or exclude notes you are not interessted in this search.
You are not just able to link to other notes or to websites, your can link to any file you want to. If you click on a link the right application will open the target.
Use the realy sophisticated search functionallity. It is not just a fulltext search, you can restrict the search to sepcific labels or to a time frame for the last modification date of your notes. You can search for the notes you created last week. Try it out, it's not only a lot of fun it also is realy usefull.