disappearing services

I added twitter, youtube, del.icio.us and facebook accounts a few minutes ago, but now del.icio.us and youtube are gone from my "using" and "available" lists of services. Is this a bug? I was getting data retrieval errors for del.icio.us at first, but not for youtube. facebook and twitter seem to still be functioning normally.
 
indifferent I’m confused
Inappropriate?
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