Tonight, my friends at Plaxo announced the acquisition of HipCal, an on-line calendar. I think this makes a huge amount of sense for Plaxo and it’s great to see them continue to do well. While I’m very flattered that I’m quoted in the blog post, I do feel the need to correct one error. The quote should be: “Whenever you have more than zero funded companies in the calendar space, you know you are in the bubble.

This Saturday, I’ll be speaking at Y Combinator’s Startup School at Stanford. I’ll be talking about some of the mistakes I’ve made and things I’ve learned over the past 8 years or so with ONElist and more recently with Bloglines. I really enjoy talking about this stuff, and the other speakers look great. I’m looking forward to it!

Last Thursday, I attended the final dinner for Y! Combinator’s Winter Founders Program. When I first heard about Y! Combinator, it was one of those ideas that just seemed forehead-slappingly obvious. Good ideas often do, in retrospect. Anyways, I had a chance to talk with several of the entrepreneurs, and every one was smart and full of energy. Talk about a great atmosphere. I’d like to thank Paul, Jessica and Trevor for the invite; I had a great time.

Thanks to Om Malik, Erick Schonfeld, and everyone else at Business 2.0 for both naming Bloglines one of the Next Net 25 companies, as well as for inviting me up for a roundtable discussion yesterday afternoon: Unfortunately, I could only stay for about half of the discussion, but the part I was there for was interesting. There was much talk about whether we’re in a bubble again, and whether things are different this time or not.

I’ll be making the trek out to New York City tomorrow morning to attend the Search Engine Strategies (SES) conference. I’ll be on the Meet The Blog & Feed Search Engines panel on February 28th, along with Adam Hertz (Technorati), Jeremy Zawodny (Yahoo), Chris Redlitz (Feedster), and Chris Tolles (Topix.net): A chance to hear directly from representatives who operate major blog and feed (RSS/Atom) search engines about how they operate. Plenty of time to ask questions after a short presentation.