ICANN recently released a paper talking about their initiatives towards operational readiness for DNSSEC root signing. This is great reading material for any TLD operator who intends sign their DNS and this also gives a bird a eye view over the whole DNSSEC issue.
It talks about what DNSSEC is all about without being too technical [...]

RegistryASP was awarded by SGNIC to provide a registry solution taking over their current solution by early 4th quarter 2008.
SGNIC is a ccTLD registry (.sg) that has been operating since Jun 2005 , after taking over from Technet Unit which operated from Jun 2004. Since Jun 2004 , there has been a total of 91683 [...]