This version added everything about embedding.

Here is a complete list of extensions you can newly embed:

Vimeo videos:

More image formats

Now any format your browser supports (list of them here)

Video formats

.mkv, .mp4 (embedded through the HTML 5 <video>)

Documents

.doc, .docx, .xls, .xlsx, .ppt, .pptx, .pdf, .pages, .eps, .ps, .ttf, .xps, .zip, .rar (embedded through the Google Drive viewer)

Sound files

.mp3, .waw, .ogg (embedded through the HTML 5 <audio>)