Here you can find an overview of the different ways to create and edit your post. Attention: we've used the "diabook" theme. If you're using another theme, some of the icons may be different.
The different icons
This symbol is used to upload a picture from your computer. If you only want to add an adress (url), you can also use the "tree" icon at the upper part of the editor. After selecting an image, you'll see a thumbnail in the editor.
This symbol is used to add files from your computer. There'll be no preview of the content.
This symbol is used to add a web address (url). You'll see a short preview of the website.
This symbol is used to add a web address (url) of a video file. You'll see a small preview of the video.
This symbol is used to add a web address (url) of an audio file. You'll see a player in your completed post.
This symbol is used to add your geographic location. This location will be added into a Google Maps search. That's why a note like "New York" or "10004" is already enough.
Symbols of other themes
Cleanzero 
(incl. more "zero"-themes, comix, easterbunny, facepark, slackr
Darkbubble 
(inkl. smoothly, testbubble)
Frost 
Vier 
(inkl. dispy)