A limitation of the software I've discovered when using the feed spider plugin is that you need to enable the automatic domain parsing option in settings.
This causes a problem if you want to manually add a domain to bookmark with a custom title, description and tags as these are then overwritten because of the automatic parsing option being enabled for the feed spider plugin to work properly.
If you could include a simple check box below each domain entry in the bookmark queue to overide the automatic option allowing manual/custom titles, descriptions and tags to be used.