Four short links: 21 November 2013
Offline Design, Full Text, Parsing Library, and Node Streams
Network Connectivity Optional (Luke Wroblewski) — we need progressive enhancement: assume people are offline, then enhance if they are actually online.
Whoosh — fast, featureful full-text indexing and searching library implemented in pure Python
Flanker (GitHub) — open source address and MIME parsing library in Python. (via Mailgun Blog)
Stream Adventure (Github) — interactive exercises to help you understand node streams.