Vintage Online

First I need to just point you in the direction of  Photo Timeline. I used Dior beginning in 1947 to make this timeline.
Very cool.

Next take a gander at this:

 On Wednesday, the Museum of the City of New York announced the opening of an online-only show of its extensive holdings of the work of two couturiers, Charles Frederick Worth and Main Rousseau Bocher, the designer known as Mainbocher.

The detail of description of each garment is just wonderful. 
A vintage lover's dream. 
Here is the link to the online exhibition: MCNY Collection