Your first ever submission should be to DMOZ - Open Directory Service
If you’re wondering why it’s called DMOZ (from directory.mozilla.org, its original domain name).
Imagine a search engine with a difference from all others, its spiders/bots are humans. DMOZ is constructed and maintained by a giant army of volunteer editors. DMOZ is intended to be one of the most comprehensive human reviewed directories on the web.
Getting listed on DMOZ will definitely help Google rankings but it can be a very frustrating task, as what spiders have over humans is speed.
It is extremely worth will getting listed on DMOZ as it is a primary feed into Google’s main index.