Pretty Shitty City certainly tries to keep it’s events calendar up to date, but its a tough old game. For a bigger, user-powered guide that specialises in gigs from accross Wales, why not check out Welsh Gigs?
If you’re a promoter or a band, you can log in to add events yourself, or if you’re a music lover you can browse the gigs and check out the ‘form a band’ section. You can even suggest a music related news item for inclusion on the homepage.
Another good website for bands and gigs is http://www.gigall.co.uk.
They can even supply you with a dynamic frame that will list all the gigs within Swansea.