Here are some external blog posts related to Force.com development that caught my eye during this past week or two:

• The Most Influential Salesforce.com Tech Bloggers – JP shows we’re in awesome company
• Force.com Explorer (beta) for Adobe Air Available – Jeff Douglas writes about the Force.com Explorer
• Using the Salesforce.com OAuth Playground – Jeff @ Appirio looks at all things OAuth
• Apex Message Severity (Visual Reference) – get those severity levels right
• Tolerado WSC integration close to complete! – Abhinav Gupta on his web service API wrappers
• Unique Field combination in Salesforce – Multi-field uniqueness
• Google Chrome Extension: Salesforce.com ID Converter – Jeff again, with a nice little extension