Sharing links is okay, but many people are suffering from information overload. One more thing to keep track of may be one thing too many. Consider starting a once-a-month-geek-out meeting. Get together at a coffee shop or pub (despite popular belief, booze and code are great together). At each meeting, have one or two people present a focused topic - Clojure, the cloud, ergonomics, game theory, hydraulics... you get the idea. Set aside a little free form discussion time as well.
When we receive information face-to-face in a meaningful context, we're much more likely to retain and appreciate it. The problem with making reference sharing too easy is that we're likely to share things that aren't ultimately significant. The burden is put on the information consumer versus the information sharer. An informal but directed meeting makes us filter through everything we've read in the last month and present an analysis versus presenting raw information.
As an added benefit, coffee shops and pubs are great places to meet dates for the weekend. Don't wear your "Pwned by Gandalf" t-shirt.