Weekly stipends paid to Second Life premium account holders (on Tuesday mornings) did not go out as planned this week. Again, yes. Apparently the batch-job that Linden Lab uses to process the payments (which takes some several hours) stopped (or failed to run) and nobody noticed until relatively late Tuesday. Well, nobody at Linden Lab, anyway.
Linden Lab says that the payments process is running again and that stipends should be paid out by morning. Overall, this isn't shaping up to be a great week in Second Life, from a technical standpoint.