Squarespace v6 now supports link blogging, the act of creating a blog post with a headline that links to an external site. It’s a great way to tell your readers about something interesting happening elsewhere on the web.
To create a link post, go to the Options panel when drafting or using the Squarespace bookmarklet (which you can add to your browser from the Page Settings panel of your blog). If you click the bookmarklet while viewing a webpage, that page’s URL will automatically be filled into the source field of your post.
[Thanks to Brady Valentino for the tip]