Do you manually submit to search engines or do you use automated software?

We feel it is very important to manually submit your site to the top 15 search engines and directories and rely on advanced software to submit to the rest. Many of the top search engines refuse submission from software programs all together which is why we choose to manually submit. Besides this, the five top directories - Yahoo, Looksmart, Snap.com, The Go Guides and The Open Directory Project require that categories be selected within their structure before a site is submitted. No automated program can do that.