I just discovered a great online vintage fashion resource - Paper Pursuits: Fashion & design print collectibles. This site sells vintage fashion magazines, advertisements, and designer sewing patterns. If you already know of this site, sorry, I just stumbled into it and got pretty excited!
The pattern collection is just to die for! Warning: the prices may trigger that cardiac arrest (if you're used to shopping for vintage pattterns on Ebay or Lanetz Living, like me). I love the As Seen In... page, where there is a side-by-side view of the sewing pattern and the designer garment in a "current" magazine.
I browsed the magazines; some of the individual issues allow you to view a selection of pages inside. I think a great birthday gift idea would be to give someone a magazine from the month and year of their birth.
Overall, this website is easy to navigate and has great image quality - features that are unfortunately not so common in some of the other online vintage fashion resources I've visited.