Web browsers have a security limitation that prevents users from selecting multiple files from their hard drives at one time. Many file/photo sharing websites have worked very hard to work around this limitation. We have not yet been able to get around this limitation.
This being the case, we have provided a way to allow users to upload a large number of images at one time to a photo gallery. Our system will allow you to upload a zip file full of images.
To create a zip file, if you use Microsoft Windows, select the desired files (use ctrl+click to select more than one file), right click and choose Send To > Compressed (Zipped) Folder. You can add as many files as you want to this new folder. Once you've filled this folder with the desired photos, upload that file the same way you upload other images. That zipped folder will be opened and each of the files inside will be added to your photo gallery.
For other operating systems, or if your operating system does not work as described above, don't be discouraged. There are a number of free zip file creation utilities available for free.
Please note that only files under 100 MB can be uploaded. Please make sure that your zip file is less than 100 MB before uploading.