Microsoft Research's Dr. Susan Dumais is the expert on this kind of personal information management. Her landmark system (and associated seminal SIGIR'03 paper

Microsoft Research's Dr. Susan Dumais is the expert on this kind of personal information management. Her landmark system (and associated seminal SIGIR'03 paper) "Stuff I've Seen" tackled re-finding material: http://susandumais.com/UMAP2009-DumaisKeynote_Share.pdf http://susandumais.com/UMAP2009-DumaisKeynote_Share.pdf