I'd like to sort all of my Gmail messages that don't have label, so I can process them (I miss some every now and then).  I can sort by every label by clicking on it at the left, but how do you sort the unlabeled ones?
How can I filter my Gmail messages that aren't labeled?
gmail;gmail filters;gmail labels
Updated:There is a blog today about updated Gmail search modifiers that allow you to do this with a simple search!has:nouserlabelsNote: Because of Gmails threading you will have labels on some of the messages in the derived list because some messages in a thread will have labeling while some won't. (From Gmail Help - Advanced Search site.)Original answer:The Gmail advanced search help page says:label: Search for messages by label*  There isn't a search operator for unlabeled messagesExample: from:amy label:friends  Meaning: Messages from Amy that have the label friendsExample: from:david label:my-family  Meaning: Messages from David that have the label My Family