Forum Moderators: phranque
The speculation was that a site needed to be rated "G" not "R" (For non US... Safe for kids and not explicit)
Aside from that, an ICRA tag probably wouldn't hurt, and they are free. Here's an example:
<meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" l gen true for "http://www.widgets-world.net" r (nz 1 vz 1 lz 1 oz 1 cz 1))'>This label declares:
No nudity or sexual material
No violence
No potentially offensive language
None of the "Other topics"
No chat facilities