Not sure if you've all heard of it but thought I'd share - it's the BEST way I've found to hold images of things I like.
You can 'pin' images you find online that you like to different boards, and then they can always link back to where you found them, so if it's something you want to buy later on, you have the image saved on your board and can click through directly to the site when you're ready.
My favourite online invention for wedding planning!