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<div class="gmail_extra" style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">TestShib's simplistic approach of having users upload metadata files that are later collated has also worked out pretty well.  We purge entities that are over 30 days old and we have over 2000 listed entities right now, so it's working for someone.</div><div class="gmail_extra" style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_extra" style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><a href="http://www.testshib.org/entities.html">http://www.testshib.org/entities.html</a><br></div><div class="gmail_extra" style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_extra" style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">It's very high maintenance, though, since you basically elect yourself dog catcher by doing this.  A form or API would give you more control over what you receive.</div></div>