The theme on that site wasn’t tweaked at all to make the Ajax functionality work (except some irrelevant CSS changes). It works out of the box on most WordPress themes that follow the theme coding recommendations, see the plugin’s readme.txt for details.

Downloads are available at WordPress.org.

• Pages can’t be tagged
• Pages don’t have categories
• Pages and posts don’t mix too well in custom loops
• Pages don’t appear in your RSS feed
• Posts are better for usability and SEO

I converted the pages with the help of the excellent p2pConverter plugin. Converting the pages is very easy. The plugin adds a “convert to post” button to every page on the page overview. Just click it, confirm, and you’re basically done. Of course, having more features for posts makes it necessary to perform a few additional steps after the conversion to get the full benefit:

• The category will be your default category, you probably want to change that
• The new post has no tags. The whole point of converting the pages (for me) was to add tags.
• As a safeguard I added 301 redirects to my server config from the old page address to the new post. The plugin or WordPress seems to do this anyway, but I wanted to be 100% sure nothing breaks in the future. Besides, doing this in the webserver saves a few PHP calls.

One thing that isn’t ideal is that all converted posts were added to the top of my RSS feed, even though their publishing date is the same as that of the former page. I’m not sure it’s possible to work around this, but I don’t think it’s a big deal if you’re only dealing with a few pages.

Assuming you did read the fine realurl manual and have done everything mentioned there, your errors probably originate from an outdated realurl pathcache. You can turn off realurl to confirm this.

If realurl is causing the errors, use your favorite (my)sql client and delete the contents of the tx_realurl_pathcache table:

DELETE FROM tx_realurl_pathcache;

This should allow you to have mount points with nice, SEO-friendly URLs across multiple domains.

Edit: If you don’t want to mess with the database, see the fine manual for ways to disable and clear the cache.

Another problem can happen when you use cookies. If not done correctly, your user’s cookie won’t be available to the website when they were stored under www.domain.com and he uses domain.com the next time he visits. See the cookie specs for more details.

A quick research led me to a solution for apache that I didn’t like too much. It involves using mod_rewrite. mod_rewrite is a great tool, but there’s a better solution for redirecting to your main domain from subdomains or second level domains. Simply use a catchall virtual host in your apache host configuration file(s) to do the redirects. This will solve all the SEO, caching and cookie issues, and it will save some CPU cycles compared to the mod_rewrite or higher level solutions.

# NameVirtualHost *:80
 
<VirtualHost *:80>
    ServerName www.domain.com
    # This is your main domain
</VirtualHost>
 
<VirtualHost *:80>
    ServerName domain.com
    ServerAlias *.domain.com
    # This is to make sure that foo.domain.com gets redirected too
    # If you want to use more virtual hosts on subdomains,
    # just define them earlier
    Redirect / http://www.domain.com/
</VirtualHost>

Please refer to the mod alias docs to decide which Redirect you need, this example uses a 302.

For lighttpd you can use this:

$HTTP["host"] =~ "domain\.com" {
    $HTTP["host"] != "www.domain.com" {
        url.redirect = (
            "^(.*)$" => "http://www.domain.com$1",
        )
    }
}

By the way, if you’re an IIS user, you might want to read this.

if ( is_front_page() ) {
    echo get_the_title(get_option('page_on_front')) . " - ";
} elseif ( is_home() ) {
    echo get_the_title(get_option('page_for_posts')) . " - ";
}
bloginfo('name');

This is example is not a complete solution as it doesn’t handle is_archive(), is_search() and friends and there’s no HTML markup. But it should be easy to adapt the idea to your own template.

Update: This is what I’m using now, it works on blogs that have a static frontpage and on blogs that don’t have one.

if ( is_archive() ) {
    echo 'Archives - ';
} elseif ( is_search() ) {
    echo 'Search - ';
} elseif ( is_404() ) {
    echo '404 - ';
} elseif ( is_front_page() && !is_home() ) {
    echo get_the_title(get_option('page_on_front')) . " - ";
} elseif ( is_home() && !is_front_page() ) {
    echo get_the_title(get_option('page_for_posts')) . " - ";
} else {
    wp_title(' - ', true, 'right');
}
bloginfo('name');