Rated 4 out of 5 stars

I think this one is quite good for organising bookmarks. However I can't do the shortcut with Ctrl + M like the developer said in some previous review.

This review is for a previous version of the add-on (2.1). 

Turning on the Sidebar

Hi Eddietta,

You can turn on the sidebar by clicking Control + Caps Lock. You can customize lots of things with the sidebar in the Customization Window under "Sidesam."