Google has extended its Google Transit experiment to include five other cities besides the initial city of Portland, OR.

Now you can now also plan your public transportation treks in:

• Eugene, Oregon
• Honolulu, Hawaii
• Pittsburgh, Pennsylvania
• Seattle, Washington
• Tampa, Florida

I was quite pleased to see that Tampa, my town, was added. A shame that I pretty much swore never to use public transportation again after the horrible experiences I used to have in Miami, FL. On those rare occasions that I do need to take the bus somewhere, though, it’s nice to have a handy helper like this.

And to make it easier for other cities to add their own transit data to Google Transit, they have developed and released the Google Transit Feed Specification.

I was playing around with the new Google Talk feature that lets you show your contacts what song you’re currently listening to, which led me to Google Music Trends. Now, I realize that this is still just an experimental project from Google Labs, but it seems a lot less useful than most of Google’s other endeavours.

In its current state it’s just a list of the top 20 songs that Google Talk users have been listening to recently. Some of the results are a little baffling, making me wonder just how many users have gone through the trouble of opting-in to the program (there is a setting in Google Talks’s preferences for this). The songs and artists also link to Google’s nifty music entries. As I write this, the top song is Dani California by Red Hot Chili Peppers. Well, actually, that’s a lie, the Peppers were second. The top song was You’re Beautiful by James Blunt, but come on, can you blame me for lying?

Anyway, all I’m saying is that Last.fm doesn’t have anything to worry about for a good while when it comes to the user-influenced music ranking business.