Today, I noticed several articles from my RSS feeds mentioning Instapaper. So I gave it a shot for about 30 min and it seems pretty good. It can be an alternative to Bookit plugin, at least for now.
It is fairly simply to use.
1. You can visit their website and register your email address, which is free AFAIK.
http://www.instapaper.com
2. Drag "Read Later" bookmarklet to a toolbar of your web browser
http://www.instapaper.com/extras
3. Whenever you come across an interesting articles, press "Read Later" bookmarket and it will be clipped to your account.
4. From Instapaper account, you can download unread articles either in epub or mobi format.
I am not related to Instapaper and I am just happy to save time and effort to format interesting articles by hand using BookDesigner or Sigil, which I have been doing so far.
