This is a list of websites that may help in your research. I will add new ones as I find them. If you know of one not listed here, please let me know and I will add it.
Keep in mind that manuscripts are not just for people who make scrolls - they might contain a drawing of what you are looking for.
If any of these links don't work for you, try putting them in The Wayback Machine at archive.org
Search for multiple spellings of a word – jewelry , jewellery, jewelery / color, colour , gray/grey, etc
Search for foreign variations of words.
Search for misspellings of words.
Try including "pdf" with your search.
Try including "thesis" with your search.
Google Search Operators from google.com
Google and Yahoo Search Shortcuts from searchenginejournal.com
Top 10 Clever Google Search Tricks from lifehacker.com
25 Google Search Shortuct You Need to Know from scholastic.com
Advanced Google Search Shortcuts from about.com
You can use a simple Google Site Search to search for public documents. E.g. keyword site:drive.google.com
Google Art Project
Google Translate will translate almost any language into almost any other. The results are not perfect, but they are good enough to see if you need to research a certain source further.
British and Irish Archaeological Bibliography
The primary research resource for British & Irish archaeology
Locate a library that holds a book that you are interested in finding.
Internet Archive is a non-profit library of millions of free books, movies, software, music, and more. You may also be able to access web sites that have moved or may no longer be hosted.
Academia is a platform for academics to share research papers. The company's mission is to accelerate the world's research.
Archaeology Data Service
Conal Conference Alerts
Listings of conferences by location and area of interest.
CORE (COnnecting REpositories)
Aggregates all open access research outputs from repositories and journals worldwide and make them available to the public. In this way CORE facilitates free unrestricted access to research for all.
Digital Library Of The Commons Repository
A gateway to the international literature on the commons. The DLC provides free and open access to full-text articles, papers, and dissertations.
ERIC - Institute of Education Sciences
Online Sources for European History
New York Public Library Digital Collections
Portable Antiquities Scheme
Hathi Trust Digital Library
Internet Medieval Sourcebook - Fordham University
A targeted search engine that compiles hundreds of thousands of authoritative resources from university, government, and established noncommercial providers.
Genamics JournalSeek is the largest completely categorized database of freely available journal information available on the internet.
The Labyrinth Resources for Medieval Studies sponsored by Georgetown University
NetSurf - The Internet Connection for Medieval Resources
ORB: Online Reference Book for Medieval Studies - UC Santa Barbara Library
Ravelry is an online store for handmade crafts. Some artists sell their patterns as well. Some are historical.
Discover scientific knowledge and make your research visible.
You must sign up for a free account to use the website
UK Detector Finds Database
World Digital Library
Metal weights and measures