Picasa creates a sharable link to share your photos, videos and albums. It has a "Link to this album" function which allows you to create a link to the album. copy the given link and open the Gmail account and then paste the URL into your Gmail's compose box to share it with other people.
Quick Tip to ensure your Photos never go missing
Photos are precious memories and all of us never want to ever lose them to hard disk crashes or missing drives. PicBackMan is the easiest and simplest way to keep your photos safely backed up in one or more online accounts. Simply download PicBackMan (it's free!), register your account, connect to your online store and tell PicBackMan where your photos are - PicBackMan does the rest, automatically. It bulk uploads all photos and keeps looking for new ones and uploads those too. You don't have to ever touch it.