Here are some of the blogs and posts on this topic that I’ve found in my aimless, late-night internet wonders and wanders:
The BA Expat forums, especially in the Women’s section and the Expat Life section. http://baexpats.org/forum.php In particular, check out this heated and highly entertaining thread: http://baexpats.org/womens-forum/10259-dating-buenos-aires.html
I love this blog as much as I take offense to it. It doesn’t get updated much but I’ve heard rumors of a book on the way http://thisisargenhot.blogspot.com/ Look at especially this post (from an American guy’s perspective) http://thisisargenhot.blogspot.com/2009/06/dos-and-donts-to-dating-in-argentina.html and this one (from an Argentine girl’s) http://thisisargenhot.blogspot.com/2009/07/dating-emergency-101-argentine-womans.html
Short and sweet. This http://www.expatexchange.com/rspnet.cfm?networkID=15&rid=60 and this http://www.expatexchange.com/rspnet.cfm?rid=60&networkid=15
Some basic stereotypes. http://www.roadjunky.com/romancepage/203/guide-to-dating-and-romance-in-argentina
And this one I just found, interesting. http://tangospam.typepad.com/tangospam_la_vida_con_deb/2006/07/miss_debys_char.html
To be continued!