Following-up on Michael Arrington's post "2008: Web 2.0 Companies I Couldn’t Live Without", here are the Web 2.0 tools and services I use whenever I am behind the computer (I'll pass on the super-obvious ones like Google Search and Wikipedia which I doubt will be displaced any time soon):

• Delicious: over 1900 entries and counting
• SlimTimer: impossible to live without it at work
• Basecamp: we use it at Orbeon to communicate with our customers (I even have a personal account for some To-Do lists)
• Google Calendar: all my scheduled activities (including a few shared calendars)
  
• Google Reader: about 200 feeds as of now (I switched a few months ago after being too frustrated with the reader in Thunderbird)
  
• GMail: I currently use it mostly through OS X's Mail app thanks to the recent GMail IMAP support
• Jott: an amazing newcomer (I just keep Jotting myself when in the US)
  
• Firefox: 'nuf said, using 3.0 beta 2 on Mac OS X at the moment
• Skype: VoiP and chat (I use SkypeOut and SkypeIn as well)
• iTunes: music player and podcast platform (but for sure I won't buy any DRM-protected music from the iTunes Music Store)
  

Here are some other services I use frequently:

• Google Docs: whenever possible (but there is huge room for improvement in the software)
• Wordpress: whenever I post a work blog entry
• Blogger: whenever I post a personal blog entry
  
• Feedburner: all my feeds go through it
  
• Google Maps: no comment
• Google Alerts: mostly for alerts about Orbeon, XForms and Mascagni
  
• Flickr: whenever I post pictures (I have a pro account)
  
• YouTube: almost every time I watch a video

Some tools I like but which I don't use often:

• Dopplr: I enter my trips there, but it hasn't been really useful to sync up with anybody yet
  
• MindMeister: just a very cool piece of software
  
• Amazon mp3 Store: I bought a few tracks to try it out, and I liked the smooth experience (just say no to DRM)

Incidentally, I have over 150 connections on LinkedIn and I am getting started on Facebook. So far I fail to find them either really useful or exciting. I bet I am missing something, but one reason could be that neither provides me with a comprehensive RSS or Atom feed of the last updates: I certainly won't bother visiting these sites every day until that happens.

I wonder how this landscape will change in one year. Hopefully there will be lots of improvements and good surprises!