One of the best ways to create "cousin bait" is to create your own blog. You can post content as often as you want, only post what you are comfortable with, include images, etc.
The blog will appear in search engine results and you may locate family members who simply googled a relative's name.
And some will find your site, copy the information, and never ever contact you. If that's a concern, think twice before you post.
Just remember that there are people with a passing interest in their genealogy who are not active in online genealogy groups, societies, message boards, Ancestry.com, FamilySearch, etc.