keyserver.searchy.nl - Extract a key
You can extract a key by typing in some words that appear in the userid of the key you're looking for, or by typing in the keyid in hex format ("0x...")

Search String:
Show PGP "fingerprints" for keys
Show SKS full-key hashes
Search for keys: get regular index of matching keys
get verbose index of matching keys
retrieve ascii-armored keys
retrieve keys by full-key hash


keyserver.searchy.nl - Insert a key
You can submit a key by simply pasting in the ASCII-armored version of your key and clicking on submit.

SKS is a new OpenPGP keyserver.  The main innovation of SKS is that it includes a highly-efficient reconciliation algorithm for keeping the keyservers synchronized.  You can learn more about SKS at the Savannah page, here.