Has your site gone down without knowing it. Or worse, as it looked like everything was OK, only to find out that your registration process has been on the fritz nice 1am and your sign-ups are zero?
Try a little site monitoring. Alert Site is one such vendor. There are more, but this one was good and affordable.
5 options for web analytics and guidelines based on company size / web goals.
HBX for medium sized companies.
Google for free.
WebTrends for medium sized companies.
ClickTracks for small to medium sized companies.
Omniture for medium to large sized companies.
And what WikiPedia has to say about web analytics.
Get found locally…
http://maps.google.com/support/bin/answer.py?answer=7039
I forget where I first head about Taguchi methods. Wikipedia does a good job at explaining it. Or least it did today 
From Wikipedia
Taguchi methods are statistical methods developed by Genichi Taguchi to improve the quality of manufactured goods and, more recently, to biotechnology, marketing and advertising. Taguchi methods are considered controversial among some traditional Western statisticians but others accept many of his concepts as being useful additions to the body of knowledge.
You can make a URL that looks like this:
http://www.nickfromneptune.com/10-tips-to-help-improve-your-natural-search-engine-ranking/
Look and function like this:
http://snipurl.com/195v8 - 27% of the orginal string. A nice feature if you are printing a URL.
One way to improve your natural rankings is by getting listed in directories. Here’s the start of the process for the Yahoo! Directory submission.
Another nice usability site. This one by Jared M. Spool - http://www.uie.com/.
AKA, pages that will most likely never be found using natural searches.
Here are a few tips from Jim Boykin’s Blog:
1. If you stole content - change it.
2. If there’s no content - add some.
3. If it’s orphaned - link to it.
And from Search Engine Round Table:
1) Place a new, nearly blank page on old/supplemental URL.
And about 10 more tips…
Is your site coming up for the right keywords? Do you know what the right keywords are? Do you know how to begin to find the right keywords for your site? Here are a few tools…
www.keycompete.com
www.keywordsanalyzer.com
www.adpile.net
www.wordtracker.com
inventory.overture.com/