Looks like you're not using IPv6, Get Ready for IPv6This is my tips section. There are various types of tips for different levels of users. Most apply to Linux, since that's what I use every day. The navigation is like a tree, each node has child nodes and tip nodes. If there are more nodes you can navigate to them using the sub-category links.
The tips section is currently being overhauled and is kinda vacant right now, but hopefully that'll change.