The document provides a summary of the top links and abstracts shared on Twitter related to the 2011 American Society of Clinical Oncology (ASCO) annual meeting from June 3-7 in Chicago. It lists the most frequently tweeted URLs and summaries of highly shared research abstracts. It also lists the drug molecules most frequently mentioned in tweets from May 29 to June 7, with bevacizumab, vemurafenib, and ipilimumab being the most discussed.