[Pharo-dev] Link to books on website

Looks like our homepage has a link to Pharo by example, but not to the new Deep into Pharo book or the other free ST book collection from Stef http://www.pharo-project.org/home Looks like the Collaborative book moved to Gemtalksystem: http://pharo.gemtalksystems.com/ Is it still maintained/used and should be referenced as well? Thanks T.