Here are a few more ...
http://www.designsbysick.com/
Click on "Search design sets by keyword" and then in the "Search below list for:" box, type "cross" and hit enter. You'll find a few cross stitch sets, mixed in with "cross" sets.
http://www.beckyjdesigns.com/services.html
Becky J. Designs only has cross stitch designs. Samples can be found by clicking "Read more" under "Free stuff".
http://www.artisticthreadworks.com
Artistic Thread Works has a number of cross stitch designs. Click on "Designs" at the top of the page and then "Cross-Stitch". There may be others mingled in amongst newer designs as I think they stopped categorizing designs by stitch type.