Google Open Source PENS Social Bookmarking 
Experiencing eLearning
NOVEMBER 17, 2009
I asked if that included open source tools too–basically he trusts libre tools but not gratis ones. Google Reader to pull everything in. He forces himself to not have too many interesting things in the “holding pen&# at a time. Social bookmarking sites are less often blocked by corporate firewalls.
Learning Visions
DECEMBER 4, 2007
The article is mostly about Google Book Search, the massive project to "build a comprehensive index of all the books in the world." Marginal annotations, which abounded in the centuries when readers usually went through books with pen in hand, identify the often surprising messages that individuals have found as they read.
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