A bit of confusion around Google Bookmarks?

Let’s start with two quick facts:

1. Google recently refurbished Google Bookmarks (after neglecting them for a couple of years), giving them more importance in search and allowing us to share them with friends more easily.

2. Meanwhile, a different team (I guess), implemented Bookmark Sync from Chrome, a new features that synchronizes bookmarks with a Google account (quite handy when you routinely use Chrome on many computers). Those bookmarks end up in a read-only directory in your Google Docs space.

I’m now wondering: why do we have two different sets of entities, called bookmarks, that

• share some similarities,
• are stored in different places,
• serve (slightly) different purposes,
• have the same name.

Isn’t that confusing?