A method and apparatus for client-side federated search is provided. The user subscribes to a number of information providers, wherein a list of the information providers for the user is stored at a search engine. When the user at a client device submits a search query to the search engine, the search engine responds by sending general search results to the client device, along with search instructions that instruct the client device how to automatically initiate a search at information providers in which the user is interested. Without any further input from the user, the client device uses the search instructions to initiate searches at information providers in which the user is interested. When the client receives search results from the information providers, the client device displays the general search results concurrently with the information provider search results.