By default SharePoint will create a content source called ‘Local Office SharePoint Server sites’ such as:
This will contain the starting addresses of all the sites on your SharePoint server such as:
Notice how it also includes the sps3://, this is the indexing of your user profiles.
My tip is to remove the sps3:// link from the default content source and add it as a new content source on it’s own.
The reasons why I think this is helpful:
- By default you need to crawl all your other content just to update your user profile information.
- You can schedule your profile crawls at a time that suits your active directory imports
In any case it’s worth considering breaking the profile crawl into it’s own content source.