These are my links for February 18th through February 19th:

• Top 8 Web 2.0 Security Threats – ReadWriteWeb – The Secure Enterprise 2.0 Forum has just released their 2009 industry report and the topic is the top Web 2.0 security threats. Designed to serve as a guideline for assessing the risk involved with using Web 2.0 tools in the workplace, the document is intended to read by anyone considering the introduction of Web 2.0 technology into their workplace.
• okcon – The Open Knowledge Foundation – Open Knowledge Conference 2009(London). Sign up now if you're interested. Places limited. http://is.gd/k6Vy #okcon
• Call for Proposals Opens for 2009 NMC Symposium on New Media and Learning | nmc – Call for proposals NMC Symposium http://is.gd/k50G
• How can Facebook be worth $15 billion? – iMediaConnection.com – Is Facebook worth $15 billion? I don't think so. http://is.gd/k4TZ
• Communities and Networks Connection – Community and Networks Connection is a content hub started by Nancy White that collects and organizes information around communities and networks. We welcome comments and suggestions.