It is free to place ads on ECCIE, but you first have to be a Verified Provider. Here is what is needed in order to become a VP:
You may post a weekly ad in this section once you have been upgraded to Verified Provider.
Submit your info to the staff at seattle@eccie.net
1. website address (your website or advertising site)
2. referral from another provider or hobbyist
3. links to reviews from recognized members (any site)
Any combination of the above requirements which will sufficiently establish you as a legit provider will be accepted.
The verification process could take 24-48 hours.
As to posting in anything other than an ad forum, you have full access to them.
Since I am also a moderator of the Seattle forum, if you will supply me with the info requested, I will see about getting you fixed up.