12. An article comprising: a non-transitory storage medium storing computer instructions, wherein the computer instructions are executable by at least one processor of at least one local computing device to: store in at least one physical memory of the at least one local computing device any results to be generated from the execution of the computer instructions; process one or more digital signals to be received from one or more first remote user computing platforms via a communication network, the one or more digital signals comprise identities of a plurality of federated search sources and one or more user-submitted index keywords to indicate content of the plurality of federated search sources, the plurality of federated search sources comprising at least one search source which is uncrawled and not publically available, the plurality of federated search sources further comprises at least one first federated search source and at least one second federated search source, individual ones of the plurality of federated search sources comprise links to multiple different specified sources of electronic digital signal quantities; index at least one of the plurality of federated search sources to determine index criteria and to determine at least one federated search source of the at least one first federated search source and the at least one second federated search source to be related to individual index keywords that comprise at least the one or more user-submitted index keywords, wherein the index is to be based at least in part on a match of domains of an indexed federated search to domains of a search engine to return results to be based at least in part on a category path, wherein the category path of the indexed federated search results is to be matched against a category path to be associated with a crawler-based search, and wherein the index further comprises: retrieve, by a server computer, one or more digital signals comprising the electronic digital signal quantities from sites associated with a federated search; extract, by the server computer, weighing factors from the one or more digital signals including at least keywords and domains; and create, by the server computer, a table of a plurality of signatures based at least in part on the weighing factors; store the index criteria in a database of the at least one physical memory; process a query received via the communication network from a second remote user computing platform after performing the indexing; execute a web searching protocol to search at least one of the plurality of federated search sources; determine one or more signatures of the plurality of signatures associated with one or more of the plurality of federated search sources to be based, at least in part, on the index criteria; match the query with the determined one or more signatures to be based, at least in part, on the index criteria to determine and rank one or more of the plurality of federated search sources for the query in accordance with a usefulness metric; and at least partially in response to a user selection of one or more of the ranked one or more of the plurality of federated search sources, perform a federated search, and transmit electrical signals via the communication network to the second remote user computing platform, the electrical signals comprising results including respective links to the one or more ranked federated search sources for the query and at least one displayable graphical indicator of the usefulness metric for individual ones of the one or more ranked federated search sources.
12. An article comprising: a non-transitory storage medium storing computer instructions, wherein the computer instructions are executable by at least one processor of at least one local computing device to: store in at least one physical memory of the at least one local computing device any results to be generated from the execution of the computer instructions; process one or more digital signals to be received from one or more first remote user computing platforms via a communication network, the one or more digital signals comprise identities of a plurality of federated search sources and one or more user-submitted index keywords to indicate content of the plurality of federated search sources, the plurality of federated search sources comprising at least one search source which is uncrawled and not publically available, the plurality of federated search sources further comprises at least one first federated search source and at least one second federated search source, individual ones of the plurality of federated search sources comprise links to multiple different specified sources of electronic digital signal quantities; index at least one of the plurality of federated search sources to determine index criteria and to determine at least one federated search source of the at least one first federated search source and the at least one second federated search source to be related to individual index keywords that comprise at least the one or more user-submitted index keywords, wherein the index is to be based at least in part on a match of domains of an indexed federated search to domains of a search engine to return results to be based at least in part on a category path, wherein the category path of the indexed federated search results is to be matched against a category path to be associated with a crawler-based search, and wherein the index further comprises: retrieve, by a server computer, one or more digital signals comprising the electronic digital signal quantities from sites associated with a federated search; extract, by the server computer, weighing factors from the one or more digital signals including at least keywords and domains; and create, by the server computer, a table of a plurality of signatures based at least in part on the weighing factors; store the index criteria in a database of the at least one physical memory; process a query received via the communication network from a second remote user computing platform after performing the indexing; execute a web searching protocol to search at least one of the plurality of federated search sources; determine one or more signatures of the plurality of signatures associated with one or more of the plurality of federated search sources to be based, at least in part, on the index criteria; match the query with the determined one or more signatures to be based, at least in part, on the index criteria to determine and rank one or more of the plurality of federated search sources for the query in accordance with a usefulness metric; and at least partially in response to a user selection of one or more of the ranked one or more of the plurality of federated search sources, perform a federated search, and transmit electrical signals via the communication network to the second remote user computing platform, the electrical signals comprising results including respective links to the one or more ranked federated search sources for the query and at least one displayable graphical indicator of the usefulness metric for individual ones of the one or more ranked federated search sources. 16. The article of claim 12 wherein the category path of the indexed federated search results is to be matched against a category path to be associated with a non-federated search.