1. Overall design/appeal
2. Ease of use
3. Availability of commonly needed information
4. Depth and breadth of overall information available
1. I think the design is a little dated. It's not a killer, because it is well-organized and functional, and consistent in appearance (i.e. there aren't 30 different font/color/size combinations), but if your parish wants to refresh the site I think aesthetically it could be helpful.
2. Everything is well-organized throughout the site. I think the major thing hurting usability is the amount of information that is on the homepage and in the sidebars. It's a sort of like the Laffer Curve: if there gets to be too much quick-access information on one page, it becomes overwhelming and counterproductive. I would improve this by reorganizing things and keeping only the current day/week's info on the front page (thereafter directing people to a sub-category), and a few top news stories.
3. This is done well, and as I said above, perhaps too well. If the amount of information was narrowed a bit and having less stuff in the sidebar, it could help. Because of the amount of information of the site, it would help to move the search field into the header so it's easier to find. And I love that people are able to submit names for proskomedia, that's great.
4. A+. You guys are utilizing it well and are keeping things maintained and updated. I am sure the site is a great resource for your parish and inquirers alike. I would echo what someone else said, though: having a prominent link to a section for new visitors would be good to add, explaining the services a little and such. You might also explain what "Annunciation" means, because I'm sure even the majority of Protestants don't know.
A few random things I would consider changing if your parish did decide to re-design the site (in no particular order):
- wider format (960 pixels is kind of the current standard, although wider sites are becoming commonplace)
- larger type and a fresher typeface
- using imagery to drive the site more, at least on the homepage, and integrating imagery into the design
- updated color scheme and navigation styling
- reducing the amount of material on the homepage and directing people to relevant sub-categories
While I certainly would not copy them in all things, getting layout/design ideas from the websites of popular megachurches can be helpful, because they pay buku bucks to have cutting-edge websites, which most Orthodox parishes just can't do. "Good artists copy, great artists steal."