Instagram is definitely the dominant Photo Sharing service in the market right now.
However, it does not hurt to shar your Instagram Photos – that you take with so much care – in as many places as possible. You will need an IFTTT account, an Instagram account and a 500 px account
Go over to this page:
Sign in to your IFTTT account.
Click on the Connect button under Instagram.
Enter your Instagram Credentials
Click on Done
Click on the 500px Connect button
Enter your 500px credentials and click on Done.
Click on the Add button
Choose whether you need the Photos to be Public or Private.
And click on Done.
The finer details
It’s important that you remember to fill in teh website field on both Instagram and 500px in order toget the maximum benefit from an SEO perspective.