Ask HN: startups working on this problem?

Yah, but I stopped development it... ScreenRack. Save snippets by highlighting text, archiving full articles and capturing screenshots of the original articles, etc.

Mobile / web app. Think Instapaper + Historious.

http://screenrack.com/

If there's interest, I'll push forward again.

check out snip.ly -- the do a good job of emphasizing text you select but still let people get to the whole article.

http://www.snip.ly/alpha

you can email your friends