Does having a few broken links in a site cause you to be excluded from certain search engines? I recently got a copy of Xenu and checked my site and found 50 odd broken links in several thousand pages.
These broken links included
Outbound links to sites that have since dissapeared and gave 404 page not founds
Some mistyped internal links again giving 404's
Some jpg and gif images which were missing
Some 12029 no connection errors to external sites
So I am now working my way though correcting these, however the question remains that is there a percentage of links in your site which are broken that is acceptable (like 0.05% for example) or are there some of the search engines and directories that will exclude you for having one single broken link???