http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fwww.vgchartz.com... http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fwww.ugvx.com%2Fs...
VG Chartz is using a busted RSS feed. E-mail them and show them what the validator says. UGVX is not using pubDates in it's feed, so it's possible Brief may not see all items in it's feed. They will need to redo their RSS feed it seems.
More information about formatting options
Re: Some feeds aren't updated after initial setup
http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fwww.vgchartz.com...
http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fwww.ugvx.com%2Fs...
VG Chartz is using a busted RSS feed. E-mail them and show them what the validator says. UGVX is not using pubDates in it's feed, so it's possible Brief may not see all items in it's feed. They will need to redo their RSS feed it seems.