I use imageevent
http://imageevent.com and like it a lot. I can configure it closer to how
I want better than another site, although smugmug would be a close second choice because of the way a user can customize the layout. That is probably the thing I like most. Also, no advertisements and the layout is not cluttered.
Imageevent is $25/year for 1500 images (no limit on size of each image or maybe it's 2MB - can't remember). A one time charge of $25 for an additional 1500 images if desired. Yes, it id worth it to me.
Very easy use and uploading, with several ways you can upload including but not limited to e-mail and FTP. The other options are to click on one of two different types of uploading and another window will open showing you an Explorer type of of display. Then just select the image(s).
I can easily personalize the layout with many different options. Other "albums" can be personalized the same way by selecting the album which you have personalized to use as the "template" within the same folder, but if you personalize another album in another folder, that "template" will not appear as an option so you'll have to configure it from the start again. I suggested that they allow albums in other folders to be personalized from templates anywhere in my site and said that they were working on it.
That brings up another nice thing I like about Imageevent - very good customer support. I always get a response in a day or two and they seem very responsive to suggestions to make their site better.
I would grade Imageevent as the best (for me, of course). Smugmug would be second and pbase third (don't like the layout of those sites as much).
No link to my site as everything is password protected. Well, okay,
http://imageevent.com/login is the link to my site, but you won't see much other than a user name and password to enter.
I can allow passwords in folders (containing albums) and or albums to keep images private. If the password is the same, you won't be prompted for a password to any place (folder or album) unless the password is different).
Linking images is allowed (from anywhere - e-bay, forums, etc.). There is no restriction on the bandwidth so it doesn't matter how many times the link is accessed. I've seen some sites that have a restriction on the bandwidth from linking so if a lot of people want to view your picture (which is either imbedded in a post or from people clicking on a link to the image) it may affect you by charging you more if you need more bandwidth. Fortunately Imageevent has no restriction like this.
A contact sheet of an album you have can be e-mailed, and clicking on a thumbnail in this sheet will direct them to that image.
When customizing an album, you can select to inhibit rightclicking to save the image, but as you probably know that's only a deterrent for someone wanting to save an image - just hover the cursor over the image and the save option will be given).