These are some outside sources that I feel you may find valuable. Since these sites are not owned or controlled by the Mardigian Library, we can not be responsible for their content but please let me know if you think something in this list needs to be reviewed, as their content may have changed since I vetted them.
Make sure you always evaluate your sources of information to determine how reliable it is before using it in your research. One mnemonic trick used to remember the key concepts of evaluation is: "Is this source C.R.A.A.P. ?"
Evaluate the source to determine its:
Currency - When was it written? Does the age of the information make a difference in how accurate it is?
Relevance - Does the source really address your key question? Does it go deep enough to be of any use to you?
Authority - Who is the author? Do they have a background or education in the topic? Where is it published? Is the site reputable?
Accuracy - Does it cite its sources? Is it well written? Does the author make basic factual, or spelling and grammar mistakes that a professional editor should have caught?
Purpose - Can you detect a bias in the writing? What is that bias?
Please remember that these are only a slice of what is available and this listing should not be considered an endorsement of any particular programs. The following links are provided only for your information.
Zotero - Citation management software. Free open access. Download the citation manager and enable the browser add-on to create citations from the web.
Onshape - CAD software. The free version doesn't allow you to keep your designs private and will automatically make them available to the public.