Here is a link that opens to 100 embroidery design companies, most have free designs posted either daily, weekly, monthly, some have hourly game finds, and enough designs you'll never go through them all.
http://www.embroiderytop.com/index.html
My favorite is:
http://www.emblibrary.com/EL/default.aspx
I LOVE this site because of the ideas, tutorials, video's to watch on site free... didn't realize you could embroider on sweaters, balsa wood, leather, fur, mouse pads, it opens a lot of ideas for gifts. And the customer sharing, if they post the project, you can buy the designs they used usually 50% off that day. They have birthday club save either 50% on a pkg, or $10 off your order, don't need to buy more than the $10 either. Christmas club adds up what you've ordered, and at the end, you get free $ to spend on designs you want, I'm at $95 earned free now, and season isn't done yet.
They also do .99cents, & $1-$1.25 and free, and discount codes for $5-$10-$25 off your order. I love the way their items stitch out too.
Then the next favorite is OeSD designs which I LOVE their beautiful FSL (free standing lace) Christmas items, not just ornaments, candle wraps, 3D church, box, angel, sleigh, wreaths, these are so very beautiful.
I love learning about something very special, and I haven't even gone through half the companies on that 100 list yet.