How-to guides:
*The wikipedia page on [https://en.wikipedia.org/wiki/LED_strip_light LED Light Strip] is an excellent starting place.
*LED supply has a nice blog with useful info: **Ultimate guide: https://www.ledsupply.com/blog/ultimate-guide-on-buying-led-strip-lights/**7 Things to Know Before Buying and Installing 12V LED Strip Lights: https://www.ledsupply.com/blog/7-tips-before-installing-led-strip-lights/
*The Art of Doing Stuff has an article: https://www.theartofdoingstuff.com/led-strip-lighting-easy-way-illuminate-anything/
Stores:
*https://www.superbrightleds.com/
There are now 12V dimmable power supplies that you can connect to a regular dimmer switch: https://www.ledsupply.com/blog/magnitude-power-supplies-with-triac-dimming/
The 110V strips seems expensive (there are some exceptions [https://www.amazon.com/GuoTonG-Waterproof-Daylight-Flexible-Listed/dp/B077M4XFGG/ref=sr_1_5?crid=1K1E5SXBQHOI6&dchild=1&keywords=110v%2Bled%2Blight%2Bstrip&qid=1595880845&sprefix=110v%2Bled%2Caps%2C173&sr=8-5&th=1]) and not dimmable.