Here's a good one.
I have their Mega 1 and Mega 2 collection. Everything imagineable and extremely well done, complete with printed index books. They are not free, but well worth the money. Since I purchased this set, I've found I no longer have to go into those lengthy internet searches trying to find what I need. Everything I've nneded so far is there...and it's all cataloged! That was my hard time...finding where I put a particular graphic when I saved it.
Definitely a time saver and very high quality.
P.S. I'm not affiliated with Allied Computer Graphics in any way.
Epilog 24TT 40w and Legend 36EXT 75w Laser Engravers, Roland SP-300V, BabyLoc PR600 Embroidery Machine, Panther 24" Vinyl Cutter, Mighty Presses (hat & T-Shirt), PRT48 Router