Inspector

The Inspector panel shows the selected item's additional fields which wwould not fit in the outline view.  Properties which it would not make sense to edit are not editable.

Persistent Identifier and Other Identifier

These fields show the identifying numbers which your web browsers, online bookmarks storage services and Bookdog use to associate item records with other external data.  We have lots of details for the inquiring mind.

Visit Count and Last Visited (date/time) in OmniWeb

OmniWeb identifies a bookmark's "number of visits" and "last visit date" by using a separate database which is associated to bookmarks using URL only.  Therefore, if you have more than bookmark with the same URL, the visit history you see in OmniWeb will be that of whichever bookmark OmniWeb happened to parse first. Bookdog has been designed to behave the same as OmniWeb in this regard.  By the way, bookmarks with the same or very similar urls are duplicate pairs, which Bookdog can help you analyze for and eliminate.