I’ve just discovered that on the 12th April 2012 the BBC changed the format of their urls, causing News Sniffer to stop tracking nearly all their articles.
I’m working on fixing this now but most of the articles from that period (12th April through to 27th May) are lost to News Sniffer.
I’m also figuring out a way to be notified when things like this happen again in future.
I’ll keep this post updated with the progress.
UPDATE 23:04: This is now fixed and BBC articles are being monitored again.