I don't understand all the hate for SQL.

Generally speaking the only issues I've ever had with databases are platform-specific and have nothing to do with the query language ie. Oracle's insanely complex configuration and endless lists of parameters. Performance tuning, indexing, replication, etc.

SQL in itself is easy to learn. What saddens me more is seeing people badly use atrocities like Hibernate instead of figuring out (or hiring someone who will) how a database works.

That being said I totally see how databases such as CouchDB will become more and more popular. Regardless of how proficient one is in SQL the possibilities are pretty much endless when you get to write the map/reduce functions yourself using an expressive language (like Javascript in couchdb)

Leopard has this capability built in.
Parental Controls

Surely blocking porn is enough? Blocking anything else is a cat and mouse game. You can be sure that they will figure out how to defeat the filtering anyways.