From IPR’s twitter page:
Text follow I_P_R to your carrier’s shortcode (40404 in the US, see the link twitter page linked above for other countries).
IPR’s facebook group is now more conversational. While the ability to post and discuss other members’ comments was there all along, for several months it was mainly a twitter-like posting of IPR articles. More recently, facebook said that groups that did not update would be shut down, so I clicked on “update.” However, at this point IPR articles stopped automatically posting to the facebook group.
IPR articles can still be easily shared on facebook and a number of other social networking sites by using the icons at the bottom of each post.