Another useful abbrev:
225=fifteensquared.net, a crossword solution blog covering several papers. Grauniad Prize and Everyman get solutions posted after 1 week; most others (late) same or next day.
Various setters often post amidst the comments on 225. I've slowly become aware to Ninas via 225 posts; some setters seem to specialize in them, but seemingly rare in Guardian puzzles.