With Matrix Layouts, you can show suggestions in a rows and columns as suited to your needs. That way he can see fresh suggestions all the time.
In the future, we will use ignore data to further improve suggestions.
Have a site that needs Dating or match making features, you can use the match making option in the Profile based suggestions ( Network Suggest) mode to setup the module to show matches of the opposite gender.
This is an extremely powerful feature which can give uncannily accurate suggestions.
When combined with RSVP Pro (the attendance addon) it can also show the events the user is attending.