New posts in Objective C Blocks

Static block variable in Objective-C

Using __block and __weak

Waiting for multiple blocks to finish

Is it ever Ok to have a 'strong' reference for a delegate?

Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?

Objective-C blocks and variables

Waiting until two async blocks are executed before starting another block

What is the difference between a __weak and a __block reference?

Why can't we use a dispatch_sync on the current queue?

Generic typeof for weak self references