I couldn't say that this is my favorite e-tailer, but I have just had an excellent customer shopping experience there so must share!
I have had about 10 pairs of New Balance shoes over the years, they are great. I love them because they come in a variety of width sizes. The ones I got in the mail this morning are 6E, perfecccct and Nike don't come in width sizes at all. Their basic Australian width is D.
http://www.nbwebexpress.com.au
I found this site and I could spend hours and hours on there, searching by size and width, style etc. I didn't realize that each shoe is designed for specific things! Like Off Road Running shoes, Cross trainers etc. (Well I had an idea but its very clear to me now)...
It only took about 3 days to come in the mail after I had payed for them. These are the babies I got
TL;DR? If you have wide feet, buy New Balance shoes