PNotes allows you to search selected note's text in web using different search providers.
In order to add new search provider click on "Add" button and insert provider's name and search string in appropriate fields of "New search provider" dialog box:
In order to modify existing search provider select it in list, click on "Modify" button and edit it's properties at "Edit search provider" dialog box:
In order to remove search provider select it in list and click on "Delete" button.
Note: two search providers - Google and Yahoo - exist by default when you run the program for the first time.