In the past, there has been mention on this list of use of extended
Latin on the web and using charset=utf-8 in page parameters - neither of
which are a novelty anymore. The issue now in some cases is policies of
organizations and decisions by web content managers whether and how to
use extended Latin and utf-8.
For an update with background on these issues in the case of websites of
the Hausa services of BBC, CRI, RDW, RFI, and VOA, please see:
http://niamey.blogspot.com/2015/09/hausa-on-international-radio-websites.html
FWIW I've also floated the Twitter hashtag #ɓɗƙƴ - along the lines of
the #acentúate campaign that you may have heard about.
FYI, two related postings/threads from 2009 (though I haven't duplicated
these quick surveys of other BBC & VOA language pages beyond those for
Hausa):
BBC.co.uk languages - mostly not UTF-8
http://www.unicode.org/mail-arch/unicode-ml/y2009-m04/0066.html
VOA- utf-8, lang="en"
http://www.unicode.org/mail-arch/unicode-ml/y2009-m04/0103.html
Don Osborn