Wikipedia is a great project, and it is without doubt a big impactful resource. With this as inspiration, I started to collect definitions, theorems, formulas and references together with some examples, for topics regarding symmetric functions. This is skewed towards more personal interests and a bit too technical to be on wikipedia.
This has accelerated my personal research projects, as I can refer new collaborators to this page, instead of asking them to find the correct page in a book or paywalled article. I also try to keep up with the latest research, so that the information is fresh, and quickly available.
Having quick access to definitions and references, which are easily found by search engines, and viewable on a regular web page with a smartphone, should help facilitate quicker progress.
The conclusion is, funding an online resource with the purpose to quickly get a new PhD student or researcher new to the field up to speed, is probably a good investment.
Aggregating and streamlining learning existing results and knowledge is a good step to produce new knowledge, in my opinion.