 Hi there. I'm Todd Quinn. I'm a Business and Economics Librarian here at the University of New Mexico and today we're going to talk about citation chaining. So what is citation chaining? It's mainly when you talk about literature review where you can track research literature over time. So let's say you have article A and it was written in 2015. So you read the peer review article, you like it, very useful. Great. Next what you can do is go look at their references and say it has numbers one through 20 references. And then you can go look through those and maybe one through five are key that are very related to A. Six and seven are dealing with a method or methodology that you're interested in. So now you have these references that you can go review, find those articles, very useful. Next what you can do is go forward in time and look at who cited A. So now what we can do is look through maybe say that it's been cited 25 times. So we have articles B through Z. A few of them can be quite related to A and some other ones maybe not. But with one article you can go backwards in time and go forward in time and find some quality content. Now one of the issues, so every article B through Z, one through 20 and A, you can do this backwards and forward citation chaining because you may be tracking a thought, a method, a theory, etc. But one of the problems that you have to watch out for is this rabbit hole. So this rabbit hole, it has all the shiny objects and squirrels. So watch out because you want to pay attention to your research question and your hypotheses. So you want to stick, stay out of the rabbit hole. Now one of the key resources that allows you to do a lot of this work is a database called Web of Science. Now the name is somewhat of a misnomer because Web of Science includes social science, science in the arts and humanities index. It also has a zoological record, Biosys and Medline, which is very close related to PubMed. So with Web of Science you can do this backwards and forward citation chaining. It's quite useful. So let's go take a look at Web of Science.