Decoupage is a decorative technique in which a design is made of pieces of printed paper which is then glued onto a base, furniture, wall, or some other flat medium and varnished.
Regular Blogs
This short but very informative weblog gives ideas and how-to tips on decoupaging floors. Included here are ways to decoupage a floor to make it look like it's made of wooden planks, prettier tile than one might have, or make counters to match the floor.
http://www.decoupagefloors.com/blog/
Presents origami and origami related events articles, and news items. Also contains a few instructional videos for those who wish to learn the Japanese art of paper folding.
http://foldpaperblog.blogspot.com/
Split about equally between decoupage and gardening, this blog's author writes from the United Kingdom. On the decoupage side, she writes about various techniques including craquelure and displays photographs of many of her projects, some of which involve garden-themed items such as watering cans and planters.
http://garden-of-decoupage.blogspot.com/
The blogger shares her projects and information about how she made them. Each one is accompanied by photographs, and many have tips about both creating the items and marketing them.
http://handcreations.blogspot.com/
The manufacturer of Mod Podge hosts this blog, which naturally has a large section dedicated to decoupage. Posts here explain how to go about making magazine collages and how to create designs on glass plates, plaques, and walls.
http://modpodgerocksblog.com/