4. Now, you should be back on the Picasa Web Albums page in your browser. Click the first Choose File button and browse your hard drive to locate the photos you want to upload. Once you've selected each photo you want to upload, the name of that file will show next to the Choose File button, but the photo will not actually be loaded into Picasa Web Albums until you click the Start Upload button.
You can select multiple photos to upload at once. When ready, click the Start Upload button and wait for the process to complete. This may take a few moments, depending on the size of your photos and your Internet connection speed. For this example, I will just be uploading one digital photo of Pyramid Lake.