[rokhayakebe]

Assumptions. Engineers are confident that building a search engine requires thousands of servers, indexing the entire web, coming up with some super complex algorithm etc...

Maybe we need a couple of guys who do not know their limitations and are ready to approach search from a different angle.

[dexen]

Perhaps the author of DuckDuckGo[1] did not know about those limitations...

As far as I know, this search engine uses both own crawlers and some external sources of data. One person team did it.

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[1] http://duckduckgo.com/

[neild]

By "some external sources of data", you mean "Bing". DDG's primary data source is Bing, via the Yahoo search APIs.