What Digital Humanists mean by ‘Tools’ is extremely loose and inclusive: in essence, it means any kind of application or software that helps you get the job done, whether gathering, processing, or presenting your research" - matthew milner
There are multiple sites to get your latitude and longitude coordinates, the most important thing is you chose one and use it consistently for your particular project.
"On May 5, 2015, the Stanford Humanities Center hosted a panel discussion in which Stanford scholars and technical experts discussed how digital tools enable them to push the boundaries of humanities research, from teaching platforms to textual analysis. Likewise, they discussed how the unique qualities of humanities scholarship are pushing the boundaries of digital tools. The event was streamed in a live webcast, which you can view below" via