Should I put a “," after e.g. and i.e.?
Yes. Here is the reason: http://www.quickanddirtytips.com/education/grammar/ie-versus-eg?page=1
Sources:
1. http://grammar.quickanddirtytips.com/ie-eg-oh-my.aspx
2. http://www.enmajor.com/cn/Html/Listening_Speaking/English_Writing/45675863590.html
3. http://ced425.pixnet.net/blog/post/3807063-『i.e.』『-e.g.』『etc.』的正確用法
4. http://missstars.pixnet.net/blog/post/31704140-when-do-you-use-i.e.,-and-when-do-you-use-e.g.,-and-what-do-
5. http://newgenerationresearcher.blogspot.tw/2009/11/eg-ie.html