Princeton’s Word­Press lim­its  uploads of image, video or audio files to 5MB.

It’s easy to find images that are cor­rectly sized for the web (Pho­to­Shop has a “save for web and devices option you can use to make sure your image doesn’t have any unnec­es­sary data, and is saved at the cor­rect res­o­lu­tion), but audio and video files can be very large. You can save space in your Word­Press media library by link­ing to large files, and only upload­ing small ones. If you make a video or audio file and would rather link to it than upload it, you can use your Web­Space stor­age space to store that file, and set its per­mis­sions to “public.”

The first but­ton is for all media types, the sec­ond is for forms.

The Upload/Insert but­ton for media is just above the text edit­ing box for a page or post.