1. A method of collecting learning materials for informal learning, the method comprising: detecting an addition of an item to a curation; extracting one or more links from a page referenced by the item; downloading pages corresponding to the one or more links ; filtering the downloaded pages to generate candidate index pages; identifying an appropriate index page from the candidate index pages; locating a primary information block in the appropriate index page; and generating an automated extraction rule configured to direct a system to the primary information block of the appropriate index page.