This may be of interest and you don't need a Facebook account to view: once a fortnight, Sue from T&M answers gardening questions that people have posted on their facebook page.
http://www.thompson-morgan.com/facebook
^^ Link to summary of the Q&As on T&M's website.
I don't particularly like facebook but I often read what she has advised, in fact I look at this page more than any from other gardening experts.