While optional, Search Interests improve upon your search. Search Interests can be useful for targeting your search to a particular type of subject matter and perspectives, amongst other things. For example, if your search is about conservative politics, you might want to search using the "Conservative Politics" interest. There are many search Interests to choose from. Click the Search Interests drop-down to find just the right enhancement for your search. To search without using an interest, select none or nothing at all.