Ibcnet
This is a clumsy setup that is only useful for the purposes of an additional listing. Click on the sidebar on the word "Directory" and you will be taken to a page where you can submit your link.

ICQ.com
Submit your site even though this is mainly a chat site. You might be interested in joining a real estate chat section. Get involved occasionally and start giving yourself a plug. Though this is a little more interactive you might be surprised at how worthwhile it might be.

Infomak
A good overall minor search engine that is adding sites relatively quickly. They use a spider which makes adding your site very simple to accomplish. This also means that you have to have your keywords and meta tags in order.

Info Highway
Now seemingly called "WebZone" this is an easy engine to submit to. Postings seem to happen quite quickly. Simply click on the link on the bottom left of the homepage to submit your site.

InfoProbe
This is a very easy and straightforward engine to use. Adding your site is as easy as clicking on the "Add Your Site" button at the top of the homepage and then filling out the form that is required. Focus on the description and keywords of your submission.

Info Tiger
A good site that uses a spider to retrieve and index your site. Ensure that your meta-tags are in order and simply add your URL and email. Posting is done quite fast.

Iseek
This is a decent site that is easy to add your web site to. Simply fill in the add link form and then wait for your site to be listed. It is fairly limited in its sources but is a good way to increase your site's popularity with the larger search engines.

It's Here
This is a smaller search engine/directory that is doing quite a good job. Again, here it is more about getting your link out on the Internet than it is about the traffic this engine will deliver. They have recently opened a real estate category for you to add your site to.