As you make copies of records, either on paper or in digital form, track the source. If you don’t do it as you go, the chance you do it goes down……
I maintain the following genealogy blogs: Rootdig.com—Michael’s thoughts, research problems, suggestions, and whatever else crosses his desk Genealogy Tip of the Day—one genealogy research tip every day–short and to the point Genealogy Search Tip—websites I’ve discovered and the occasional online research tip–short and to the point Casefile Clues–information on my genealogy how-to newsletter which focuses on analysis, interpretation, and methodology through case studies and document analysis. Subscription to these blogs is free. Subscribe/Unsubscribe links are in every email and on the top of each blog page. Subscription to the actual Casefile Clues newsletter (emailed as a PDF file) is on a fee basis–only $20 for 52 issues. Subscription to the weekly blog update is only $5 a year.
When an item in a file or set of records has no date, indicate that in any images you make from the document–whether for your own personal use, posting to the web, sharing with colleagues, etc. Saying something is “undated” makes it clear to you later that there was no date on the item. Otherwise you may be wondering if there was a date and you simply forgot to include it. That’s a waste of time. Learn more about research, methods, and sources in Casefile Clues.  
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