Adapted from: Geographical Information System (GIS) LibGuide
What is Spatial History? by White (Stanford University)
The Spatial Turn by Guldi (Scholars' Lab, University of Virginia)
There are many open source applications and software available for spatial analysis and visualisation of spatial data. Here are two options and their guides that you may consider using if you want an alternative from ArcGIS.
R/Rstudio (Unix, Windows, Mac OS)
QGIS (Unix, Linux, Windows, Mac OS)
Tableau (Windows, MacOS)
Heatmapper: Create your own heat maps at the click of a mouse. Overlay your own image and input your own data to automatically generate the heat map. This tool would be useful for behavioral studies or space ethnography.
Datawrapper: Open source tool helping anyone to create simple, correct and embeddable charts in minutes. It is easy to use, gives you full control and is customisable.
Infographics Generator:
Easel.ly: Thousands of templates for various purposes.
Canva: Easy drag-and-drop. Templates available.
Pikotochart: Interactive charts and maps. Large library of images and icons.
Qualitative Data
HyperRESEARCH: software facilitating both coding and analysis of data, with search features and reports.
Quantitative Data
SPSS: tool for data & text analysis and visualisation.
Stata: tool for data management, statistical analysis, graphics and simulations.
Network Analysis
GEPHI: Gephi is the leading visualization and exploration software for all kinds of graphs and networks.
Text Analysis
Voyant (word counts, trends): Voyant Tools is a web-based text reading and analysis environment.
Tool Repositories
TAPoR: TAPoR (Text Analysis Portal for Research) is a platform to discover research tools for studying texts.
DiRT: DiRT (Digital Research Tools) is a directory of tools organized by research activity.
Data Cleaning Tools
OpenRefine (formerly Google Refine) is a powerful open source tool for working with messy data, cleaning it and transforming it from one format into another.
British Library: Cartographic perspectives from BL Map Librarians
Singapore:
National Library Board Spatial Discovery - Explore over 3,000 high resolution copies of maps/plans
Historical Street Maps - Downloadable street maps (from 1954)
National Archives of Singapore - Read here. Government files, private memoirs, historical maps and photographs, oral history interviews