Theme Sites. These are of course thematic, which will be helpful on what theme you want to use in a page. Scrapbooking is like Wordpress. If you are making a website powered by Wordpress, you will look for nice themes that you can work on instead creating your own. It should be appropriate in the long run as you post and update it. In scrapbooking, templates will stick for a long time after some time of adding all the elements, and it will be the basis of the overall look that you can't change. Photo Sharing Sites. These sites are both theme and group sites at the same time. Photo sharing is mostly their goal, but I have seen scrappers post their layouts or projects. So you will get templates or their ideas as well.
Using scrapbooking templates can be a real time saver for those of us who spend a lot of time trying to create the right embellishments to go with our themed layouts. With templates, a lot of the work is already done for you. All you have to do is prepare them and arrange them in their right places on your layout, then attach them and you're done! You can use templates for cropping and designing your photos, layouts, and also help a lot in visualizing where your embellishments should go.