This document summarizes key issues in internet law in 2013. It discusses the scope of immunity for interactive computer services under Section 230 of the Communications Decency Act and exceptions carved out by courts. It also covers ongoing debates around net neutrality and efforts by states to require online retailers to collect sales taxes. Emerging issues include new generic top-level domains, regulatory approaches to sharing economy businesses, copyright enforcement by ISPs and networks, and the 10th anniversary of CAN-SPAM legislation.