Readlists is a website that let you create an ebook from your favorite web pages or articles online. Build by the same team that build Readibility, Arc90, Readlists is a nice way to bundle a few websites that have related article into a nice ebook form for better reading. Readlists does a good job to filter out only the relevant content and cast away any unnecessary comments or distractions from a website so you can focus on the text.
Readlists create ebook in ePub format that you could download or send it to your Kindle, iPhone, iPad or just send it via email. You can also collaborate with other people to create an collaborative ebook, just send them the public edit URL of readlists you created. While you can create readlists anonymously, Readlists also give an option to log in and let other people see your creation. Arc90's favorite list will be promoted to the front page of Readlists.
I like to use readlists for creating an ebook from a different articles and tutorials of related things I found online and than I could read offline without an internet connection. It will be better to read it with kindle, iPad, or iPhone.