False - While there are a few worthwhile paid directories online, generally you can get equal mileage from free directories. Most search engines allow you to submit your site to them free of charge. This gives them notice you are there and speeds up the process of your site being found by their web crawlers. Some directories like Martindale Hubble and Find Law have huge yearly costs associated with listing law firms. This money would be better served with investments in SEO and Pay-Per-Click advertising.