Update: Etude House USA has closed. Read on for links to other sources for buying Etude House cosmetics.
Etude House is a Korean cosmetics company that has a number of lovely products, including a good blemish balm (read review). For the longest time, it was difficult to obtain their products in the United States. The company did not retail in the U.S. and was limited to a few Asian markets. I used to buy the products on Ebay. I love their products.
Now there is are some online retailers selling in the U.S.: My favorite is YesStyle.com which not only carries Etude House, but also carries a ton of other asian cosmetics brands, along with clothing and some really great handbags at excellent prices. There is also COSME-DE.COM (who also usually has free shipping). It too carries some Etude House items, along with a great selection of other Asian brands. Both of these ship from asia, but I have had no problems ordering from them and shipping was either reasonably priced or often free in the case of YesStyle, which also seems to ship a little faster.
Then, there is EtudeHouseUSA.com. A note on the site does say that orders are currently a bit delayed because of overwhelming response.