Do you have site with Enough traffic and have audience interested in Jobs related
your Site Category. Than there is good change to make money from your own job
board on your site.

You don't need to buy and program or hosted own job board on your site. Now
there is a couple of sites offering Revenue sharing Job board service which
you can use on your website.

I am using Jobthread Hosted Job Board on my site and Here is my Earning from My Job board. There
are keeping 50% of Revenue with them. No Monthly payment system yet. You need
to contact every time them for your payment and they will send through Paypal.
As they have no special customer service phone line and i think they have not
special customer care departments mostly i am getting anwers from his founder
Eric.

They have a nice interface and tools to run a well maintain job board. They
have special service which can design a job board for you to match your site
design.

There are couple of other Job Board I am listing Here which are also Good!

Job-a-Matic From SimplyHired.com

Only accepting Publishers from USA. I just emailed them for Canadian Publisher
program and they told they are brining service for people outside USA in next
summer 2008. Check thier Blog for latest Updates.

JobCoin.com

It's also a good service but very few tools to use. As price start with
$99 per post hard for small site owners to get advertiser with high job posting
price. May be you can talk to them for special price for your site.

Beyond.com Job board

Lots of Tools for Jobseekers and Employers Available. Can check after registering
with them.

Now i am listing here 2 More Job Board software you can buy once install
on your site and Keep 100% Profit with You.

J-Board - Job Board Software

UK Based Programmer giving nice job board software for 45UK Pound and 10UK Pound
for Installation if u want.

Jobberbase Open Source Job Board Software

Giving Completely Free a fully featured job board software. You can install
on your site with installation guide from their Blog or you can hire programmer
to do it. Nice Features!