This document discusses building a personal learning network (PLN) using various online tools. It recommends viewing one's PLN as a collection of connections ("lightning bugs") that provide constant learning even in darkness. Twitter, blogs, and social bookmarking are presented as key tools to guide independent learning and professional development through a deliberately formed network. Specific tips are provided on using hashtags and lists on Twitter to find people with shared interests and group them. Educational blogs by experts and local educators are also recommended resources.