Scrobbling is an integral part of how Last.fm works and it's worth familiarising yourself with what it is and how it works if you want to make Last.fm work for you.
Last.fm builds a profile of each user's musical taste by recording details of all the songs the user listens to, either on the streamed radio stations, on the user's computer or on some portable music devices. This information is transferred your Last.fm's Library or Scrobbled.
With most listening methods you can turn Scrobbling off and configure it in various ways, this option isn't available if you're listening to a radio station on the Last.fm website itself, but it is for instance an option with the Firefox add-on 'Fire FM'.
NB While listening to a track on the last.fm site, if you skip or stop a track before about the 60% mark, it doesn't Scrobble it.
If scrobbling is off this has the knock on effect of not adding the track to your Recently Listened Tracks and therefore not updating your Chart of Top Artists or the Charts of any Groups you might be a member of.
I like to listen to my My Recommendations radio station to find new music, I have to have Scrobbling turned off for this, if I like a track on there I go onto the last.fm site and add the artist/album/track to my library manually, I don't want to have every track I listen to added to my Library.
I think there should be a separation of listening history and library additions, as things stand they are one in the same thing and it's a major drawback IMO.
You can listen on the last.fm site itself, on the last.fm home page - http://www.last.fm/home - there are 4 radio stations listed
Your Library - Only plays music which is listed in you library.
Your Loved Tracks - You can mark a track as 'Loved' with the heart symbol on the player when listening to a track
Your Neighbourhood - When you have enough listening history last.fm will start to find other users with similar taste, this plays tracks from their library's.
Your Recommendations - Tracks similar to your listening history
You can also search for music, either by genre or artist/track etc, and in bottom half of the the player on the top right of a page (as shown in this picture) there's a radio link, in the case of an artist, this would be tracks by this artist & similar artists
There's a PlaystationLeague Radio Station
If you go to the PlaystationLeague group home page you can listen to the collective libraries of the PSL members.
Media Players & Devices
If you already have your listening all sorted out you may want to use your existing player but get it to upload your listening habits to Last.fm. If you use iTunes, Winamp or Windows Media Player you can download the official last.fm application at - http://www.last.fm/download - there's also support for the iPod & iPhone here.
NB Unless you're listening to a last.fm radio station then you're listening to tracks which you already own, Last.fm only monitors your listening habits in this case, there's no major downloads/uploads going on here.
You can use the last.fm application as a configurable radio player, with this you can configure how far through a track you have to be before it Scrobbles the track.
Some applications create their own plug-ins rather than it being supported by Last.fm themselves.
Firefox has an Add-On in for it called Fire FM - https://addons.mozilla.org/en-US/firefox/addon/7684
Once installed, go to Tools > Add-ons, highlight the Fire FM application and choose Options, here you can move the player controls down to the task bar
I use MediaMonkey to listen to things locally on my Laptop and sort out tracks for my MP3 player. I downloaded a plug-in for it from the MediaMonkey website, as you can see it's an invisible integration into the player, the only difference being the extra option in the options menu, there's not too many options but it's good enough for me.
Posting Article to Group
To post a Journal entry to the PlaystationLeague group on Last.fm go to the group home page and click 'Articles' down the left hand side
When posting a journal entry to a group it ticks the wrong boxes, so when you hit 'Post' it will only publish it to your personal last.fm page.
This is how it first presents itself (least it does for me)
Weirdly to get the tick boxes right you need to click on the 'submit this entry to one or more of my groups' box 3 times, the first time it gets rid of the group name all-together, then you have to uncheck and check it again before the boxes are all ticked correctly !!
I've just noticed that Scrobbling doesn't work from the PS3, the stream isn't so stable either, you get a few little scratched CD style skips and sometimes it pauses.
Any more questions please let me know and I might add something to this
PlaystationLeague (PSL) - Meet, Talk, Play, UK