23. The system of claim 22 , further operable to perform operations comprising: receiving a search query; identifying resources responsive to the search query; generating initial search results identifying the resources responsive to the search query; filtering the initial search results based on resources corresponding to entries in the list to produce filtered search results; and presenting filtered search results in response to the received search query.
23. The system of claim 22 , further operable to perform operations comprising: receiving a search query; identifying resources responsive to the search query; generating initial search results identifying the resources responsive to the search query; filtering the initial search results based on resources corresponding to entries in the list to produce filtered search results; and presenting filtered search results in response to the received search query. 24. The system of claim 23 , where filtering includes removing search results corresponding to entries in the list.