No body mentioned Sajha ;)

There was one I would say HiTech however lots of things are changed there. Now it looks like Classified site-  www.nepalisociety.com. It used to have crawler that retrieves news from few nepali news source and some international sources too. It also used to crawl  stock news and analyze the stock report ( display graphs, list of stocks that has increased for last 2/3 days ) sends text to the provided number if certain percentage of ups/downs in any stock market was choosen etc. But the guy ( admin) removed the crawler ( no more news ) and locked the stock anlyzer (password protected) for his personal use. He had blogs, classifieds, profile page for users etc which are still there.

The coolest part of the page was stock analyzer which is unfortunately not available for users now.