About 3 months ago, as an experiment, I launched the Cancer Stem Cell Chronicle, an online daily newspaper that's based on excerpts from 3 streams of content: 1) Twitter content tagged #cancerSC, 2) Twitter content that includes the keywords "cancer stem", and, 3) content derived from a PubMed RSS feed for the search term "cancer stem".
The experiment looks promising. The CSC Chronicle is beginning to provide a convenient way to monitor recent research news about cancer stem cells. Archives are available. The section headings in the CSC Chronicle aren't very meaningful, and should be ignored.