But some alumni of Britain's Deobandi institutions do advocate self-segregation by Muslims, especially where local indigenous culture is dominated by alcohol and drugs.

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"I think it's fair to say that the Web has great potential to at least mitigate everyday tendencies towards self-segregation and social exclusion, " Kaufman said.

CNN: Does class decide online social networks?

Is that a result of the self-segregation social entrepreneurs assign themselves?

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