- Instead,FOAFtoolsusedigitalsignaturestoassociateanE-mailaddresswithadocument.IconcludedmymostrecentcolumnbyposingaseriesofquestionsraisedbymyuseoftheFOAFapplication.Butbeyonditsownapplicationsphere,FOAFprovidesausefultestbedforexploringconceptsonwhic...
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