Maybe this isn't your issue, but it might be useful to someone else. The link only shows within around the first 47 characters of the description. Beyond that the user has to click on the "Show More" link to see your URL, driving down the likelihood of a click through. If you post a video and want to encourage click throughs, do a variation on a description like this: "http://www.example.com presents a video about bla bla bla..."

Funny thing about this, is that I attended an SES session in San Jose about optimizing YouTube videos and not one speaker mentioned placing the URL at the beginning of the URL. One of the people presenting showed a snapshot of one of his YouTube videos and it didn't have the URL in the first 47 spaces of the description. lol

This was also an issue. The URL was cutted at ".htm".
Only ".h".

As I tested the link, I was coming first to my error 404 page

Than I clicked at YouTube on "more" and clicked again

Both visits showed up in my referer log file

The URL was cutted at ".htm".
Only ".h".

that's pretty funny - nice job, youtube!

The strange thing is, that they cutted not only the text, but also the URL causing an error 404.

My main question is, is YouTube something useable?

I mean I live a big part from AdSense money.
So I want to have visitors on my site.

When I publish something on YouTube and do not recieve more visitors on my site, it makes no sense to publish on YouTube.

When I publish something on YouTube and do not recieve more visitors on my site, it makes no sense to publish on YouTube.

If it's a long video...

...one strategy is to publish only a teaser of the video on YouTube, enough to get people interested and have them give it positive feedback, but not the whole thing. If they've seen the whole video on YouTube, and that's all you have, there may be no reason for them to click through to your site.

I Post on Youtube
not to bring more hits to my site,
but to use the video in my webpages.

Gerusalem - Welcome to WebmasterWorld.

You make a good point, in that if you're using YouTube to host all of your videos, you're not going to be able to put up a teaser.

For those who are hosting entirely on YouTube and do want clicks, it's important that, as martinibuster suggests, you identify your site within those 47 spaces.

This was also an issue. The URL was cutted at ".htm".
Only ".h".

Best examples I've seen put the link the first thing in the description. If you've got a long url, link to the domain name. If you've got a long domain name, maybe you'll have some problems on YouTube.

I use Youtube to host my videos too, and to add to the points already made:

Obviously have your web address in the video (I use just the domain name, eg www.widget.com - people can remember that!)

Put the link to the page right at the beginning of your youtube description.

Get your youtube title, tags and description spot on, your video will show up in Google Video Search (Duh!) but could also come up in general search.

Link to your website in your profile.

Make sure you respond to questions.

Youtube referred just under 1% of my visitors to one of my sites in the last month (not counting people using the address bar) - they spent 40% more time on my site than the average, and bounced about 5% less than the average. (Isn't analytics great!)