When attempting to identify blocking issues, you may find yourself looking in sysprocesses at the waitresource column, and trying to decipher the meaning of something along the lines of:
KEY: 32:72057594097827840 (f5593d0e605b)
Thanks - you couldn't just tell me the actual object could you?!
But help is at hand - apparently this key consists of the database id, followed by a a hobt_id - no, not a small person with large feet from New Zealand, but a "Heap or B-Tree" id.
This id value can be found in the sys.partitions table, so a quick join from that to sys.indexes, and back to sys.obejcts finally reveals the index we are blocked on.
SELECT o.name, i.name
FROM sys.partitions p
JOIN sys.objects o ON p.object_id = o.object_id
JOIN sys.indexes i ON p.object_id = i.object_id
AND p.index_id = i.index_id
WHERE p.hobt_id = 72057594097827840