Today, Twitter is kicking off its first ever developer conference, Chirp. Speakers include Ev Williams, Biz Stone, Ryan Sarver, Dick Costolo, and John Battelle, who will be speaking on topics like Twitter’s @anywhere platform, geo-location, monetization, and third party developers. The last topic, in particular, will likely be an ongoing theme throughout the day, as Twitter will need to explain to developers how not to fill holes in its product but to instead build their own killer apps. And through all of it, there’s bound to be plenty of announcements. I’ll be taking live notes and covering breaking news throughout the day (we’ll include links to each new post below).

• Twitter announces over 105 million registered users, 300K added a day, and more key stats
• Keynote By CEO Evan Williams
• Twitter Adds Places To Its Geo-Tweets, Just Don’t Call It A Check-In
• Live From Chirp: Twitter’s Platform Roadmap
• Ev Explains Twitter’s Move Into Mobile Apps: “Otherwise We Are Failing Users”
• Twitter’s Gift To Developers: Limitless User Streams And Annotations
• Twitter COO Dick Costolo Spills The Beans On The @anywhere Platform
• Twitter Execs Address The Big Question: Monetization
• Twitter CEO Ev Williams: Revenue Is A Feature
• Investors On The Evolving Twitter Ecosystem: There Are Still Opportunities
• Q&A: Twitter Execs Answer The Tough Questions At Chirp
• Twitter Will Have An Official Android App
• Sorry Bit.ly, Twitter Confirms It Will Launch Its Own Link Shortener