Bookmarking allows you to access the content you are interested in, more easily.
To see your bookmarks, select the bookmark icon on the top right of the page. This will display a dropdown menu where you will be able to find all your bookmarks. You will only be able to do this when you have signed in to the community.
You can bookmark content, an application (e.g. a blog channel), a group, or another member. To bookmark a group, you will have to be in that group. Then, select the 'BOOKMARK THIS GROUP' text, which can be found in the bookmark dropdown menu (as shown above).
To bookmark forums and blogs, you will need to also be in those applications and then you will need to select the bookmark option which can be found on the right of those pages.
You can also find all your bookmarks within your profile.