Where can I locate FAQs pertaining to NSF's implementation of OMB's Uniform Guidance?

See http://www.nsf.gov/bfa/dias/policy/faqs/faqs_2cfr200.pdf

Where can I locate helpful resources pertaining to NIH's implementation of OMB's Uniform Guidance?

NIH has added a video overview as well as a recorded Q & A to the NIH Grants YouTube page which can help you understand NIH’s implementation of the guidance.  A PowerPoint slide set of the presentation and transcripts for both videos are also available for download at https://grants.nih.gov/grants/webinar_docs/webinar_20150315.htm.