Aperture provides a variety of ways to share your photos with others:
Use My Photo Stream, an iCloud feature, to keep your photos up to date on all your devices without having to sync. See My Photo Stream overview.
Use iCloud Photo Sharing to share photos, video clips, and comments about them with your friends. See iCloud Photo Sharing overview.
Email photos directly from Aperture. See Email photos.
Send photos to Flickr, Facebook, and SmugMug from within Aperture. Photos placed in Flickr, Facebook, and SmugMug albums in Aperture are automatically exported to and published in your Flickr, Facebook, and SmugMug accounts. See Sharing photos with Flickr, Facebook, and SmugMug overview.
Create webpages and share them on the Internet. You can create web galleries with multiple images per page and upload them to your website. You can also create web journals that present your images with descriptions and titles. See Creating webpages overview.