1) The document discusses how scientific journals can be re-engineered for the online environment. Key functions of journals include registration, certification, awareness, and archiving. 2) It explores how awareness can be improved through open access and increased discoverability. It also examines shifting certification to add more value after publication through article-level metrics. 3) Registration can be improved by facilitating more rapid sharing of information through platforms like PLoS Currents, which enables publication within 24 hours through light, post-publication peer review.