Ideas and Thoughts from an EdTech » Blog Archive » Diigo you have given me a headacheNegative post about Diigo, specifically that new users are apparently asked to import contacts and can end up sending spam to everyone they know.Imported from Diigo#privacy#socialbookmarking·ideasandthoughts.org·Mar 29, 2008Ideas and Thoughts from an EdTech » Blog Archive » Diigo you have given me a headache