I have enjoyed looking at multiple hosting options through clients in the last few months. Yesterday I worked with Plesk on one account and another who uses Yahoo! for hosting. Just as I was getting ready to write a positive blog post on Yahoo’s web hosting I ran into a snag when uploading and preparing the WordPress site for my client…Yahoo! does not allow you to use mod_rewrite Permalinks. So instead of having nice URLs like /services/ and /contact/ you have to use ?page_d=4. Gross. So in short – if you are using WordPress and want to maintain it yourself (always have the latest, most secure version, etc) I do not recommend using Yahoo! for WordPress sites.