Identify people on pictures--now! Don't wait, don't linger, and don't delay. In cleaning out my office at work, I discovered two pictures--each with a great-grandparent and their siblings. The great-grandparent I can identify, the siblings I cannot. In one case, everyone who would have known the siblings is gone. In the other case, I need to get my "rear in gear."
Don't wait. If you have people that can help you identify those people in those pictures, do it. All the websites will be around tomorrow. Those people might not.