Long lists of text posts are not attractive and are thought not to entice a reader so it is recommended to embed media into a post even if it is just a related (however loosely) picture. From the upload/insert bar (above the main toolbar) you can upload:
A picture can be very effective in making a post more eye catching even if the image only has an indirect link to what the post is about. If you are short of good images they can be purchased relatively cheaply from Stockphoto sites like istockphoto or alternatively you can use the creative commons images from Flickrnormally without cost except attribution to the owner (best to check all licenses before using especially if you are using commercially)
If you have video files then these can be uploaded and embedded in a post if you have paid for the video upgrade but far more popular is embedding a video which is being hosted on another site such as youtube.
The URL (web address) of the video can be entered directly into the upload Video>’From URL’ tab (Below)
Then the Video will display and can be viewed on your blog:
Audio can be embedded by adding the tag to a hosted mp3 file which would result in an embedded audio file which can be played on the site like this:
As well as embedding the above media you can also embed polldaddy polls. See this post.