Unless you're in the market for equipment, I don't rate the mainstream UK mags very highly - they tend to be a tad superficial when it comes to technique, and far too equipment (ie. advertiser) oriented.
Some European and US ones seem to be more focused (
) on composition, lighting etc. but they're hard to find and expensive in the UK.
I prefer to get hold of books by (or about) photographers I like, and try and learn from their pictures ... WHY are these great shots?
Colin K. Work, Pixstel