Mashable has:
20+ Free Press Release Distribution Sites

30+ Ways To Advertise Yourself

250+ Tools and Resources For Coding the Web

Mashable has a lot more of this kind of thing but I can’t find any categories or tags on their site.  You can scroll down to the bottom of each post for more links but somebody’s missing something.  If it’s me, please clue me in.

There is a link on some pages to TAGS but that goes to a networking feature.  I can’t believe I wasted my time trying to find something so basic and still can’t.

This works: Search Mashable: Toolbox