FixMyMovie, one of the popular service that Fix your low-resolution video toa better quality. Tech Info Tips have a review on it on July.

Sadly, this great service comes to it's end, which FixMyMovie.com shuts it down in the end of December. Here is what I get this news from FixMyMovie.com newsletter. Here is what the newsletter says:

Dear FixMyMovie users,
We're writing to notify you that we're shutting down FixMyMovie.com on December 31, 2008. In its place, we're launching a new Windows desktop application, code-named "Carmel," which will be released in the first quarter of 2009. As we mentioned in the last newsletter, Carmel will introduce many of the features you have requested, including faster video processing, even better video enhancement, and expanded editing and sharing options.
If you have uploaded any videos to FixMyMovie that you'd like to keep, we recommend that you use the "Download" option before December 31 for each fixed movie that you'd like to save.
We'll notify you via e-mail when the first version of Carmel is available for you to download. In the meantime, if you'd like more information on Carmel, you can visit the product page.
Best,
The FixMyMovie Team

It's will be a great loss for this great service is shutting down. It have been fixing some of my low-res phone video for months. Anyway, thanks for the great service!