It seems to me, the more technology advances, the more complicated our language gets. We create new words from old ones (web log...weblog...blog), create acronyms, and find new ways of combining words to get our ideas across ("cloud computing").
But sometimes these new terms and phrases are not exactly self explanatory. They mean to be, but they aren't. Here are a few that you might not know:
Microblogging: using services like Twitter. Short messages about where you are or what you're doing. You can also use it for information finding. Member Jill Hurst-Wahl has posted about ways to use Twitter on the IT Division/Blogging Section blog. Read those posts here and here.
SaaS: Software as a Service. When I first saw that acronym, I thought, "It's probably pronounced 'sass.'" And then I moved on. Eventually I looked it up because I keep seeing it everywhere. Basically, it's the remote hosting (via the Internet) of software-based services that we used to purchase and put on our own networks. Wikipedia has a good definition, and this CIO blog post has some interesting comments about SaaS's (!) impact on software licensing models.
Cloud computing: the Internet was a web...now it's a cloud. Or maybe it was always a cloud, like in those beautiful pictures of space. Dell wanted to trademark the term, but it looks like that won't happen. Think of it as web-based email, desktops, and other applications. Security is a concern. You could say SaaS is a type of cloud computing, although the true definitions of each seem to vary from narrow to broad. Basically, think of the cloud as a place "out there," not in your workplace, where your stuff (obviously, not a technical term) is. Again, check out Wikipedia for a more detailed exploration. Update: Dell's attempt to trademark the phrase was rejected.