Batch Upload allows you to manage multiple albums and folders in bulk. Batch Upload is under Tools > Batch Upload. Selecting one of the options will display a list of checkboxes by your folders and albums. To use this tool, you'll need to be signed into your Google Account. Once you're signed in, you can make the following changes to Picasa Web Albums:
Upload new photos and videos that are not online. Selecting Upload will bring up a list of albums and folders that have not been uploaded. Under the Upload Options box, choose the size, visibility and whether or not you'd like to sync. Make your selections and then click OK.
Choose Change Options when you want to adjust folders and albums you've already uploaded. Under the Upload Options box, choose the size, visibility and whether or not you'd like to sync. Make your selections and then click OK.
Remove some or all of your online albums. Simply select the albums you'd like to remove and click OK.