One of the hottest topics I see on music forums is compression as well as mastering (as they're often related), and a lot of the info shared is a bit off or wrong. Compression is something I use in mastering, but I don't use it as much as people less familiar with mastering or compression seem to think is necessary.
That is why I wrote a blog post about compressing a song.
You can read it in my blog at http://fanumusic.com/compressing-your-song/
I'd be happy to hear how you feel about it.
Long live punchy transients!