Sometime last month, the BBC circulated a Powerpoint presentation (Scribd document) to staff that cements links as an “essential” (emphasis per original document) element for BBC reporting.
Moreover, the BBC wants to “double outbound links from 10m to 20m a month by 2013.” Links are, according to this BBC document, a “well suit[ed] unique selling point for BBC News.”
The guidance document includes important tips for anyone who is writing online: