Here is one. It only gives one source/ article about wether or not the veil is still required, which states it does. However in another thread there is much contradiction to this matter. I believe Catholic Answers also had a discussion about it in which they do go further into the matter.
http://www.christianforums.com/t729549-head-covering.html
In this link you'll find testimonies about those who chose to wear one, those who chose to wear an 'alternative veiling' and just general thoughts on the issue.
In this one as well:
http://www.christianforums.com/t154377-wearing-a-veil.html
I can't find the discussion anymore. Not certain it was Catholic Answers. Here seems to be the main point of discussion:
"The 1917 Code of Canon Law. canon 1262, stated, 1. It is desirable that, consistent with ancient discipline, women be separated from men in church. 2. Men, in a church or outside a church, while they are assisting at sacred rites, shall be bear-headed, unless the approved mores of the people or peculiar circumstances of things determine otherwise; women, however, shall have a covered head and be modestly dressed, especially when they approach the table of the Lord. When the 1983 Code of Canon Law was promulgated this canon was not re-issued; indeed, canon 6 abrogated it, along with every other canon of the 1917 Code not intentionally incorporated into the new legislation. Thus, there is no longer any canonical obligation for women to wear a head-covering, much less the more specific veil. "
People argue wether or not the canon of 1983 in which the practice of the veil isn't mentioned anymore removes the obligation, specifcally because it is mentioned in the code of 1983 that this lifts up the previous ones.