I suppose if I'm doing this thing I aught a pay homage to the people who really inspired me to start my own. The following is a short description and link to a few really great sites.
General Crafts and Tutorials:
Tipnut- Possibly one of the best-orginizined repository of links for just about any craft, DIY, or household project ever. Browse the categories to find pages of well-described links with photos of each project.
Craftster- Yeah, it's technically a forum, but this cheeky site has got great posts of tutorials and places to sell projects. The forum style allows you to read about other crafter's attempts and reactions.
Cut Out + Keep- A nice site of tutorials. Like Craftster, it has a social networking element that is helpful.
Craftzine- Another nice tutorials site.
Jessamyn's Regency Costume Companion- Yeah, the design reeks of early 2000s code webpages. Yeah, it hasn't been updated since about 2009 and a good amount of the links are outdated. Still a fantastic resource for Regency costumers, with in-depth looks (including photos!) at many elements of Regency era clothing and accessories, plus book and film reviews. Also check out the very detailed dress diaries, which are very inspiring and entertaining reading.
Elizabethan Costuming Page- Run by the very experienced Drea Leed, this website is a great repository of links for all things Elizabethan. Find tutorials, photos, and helpful articles.
Semptress- Another great costuming site, focusing mainly on Elizabethan, but also forays into other eras occasionally. Some great sewing tips and tutorials included.
Festive Attyre- A website run by one of those general, all-over hobby costumers. She isn't particularly amazing at any specific era, but she crafts some lovely clothes.
Demode- A fun, pretty site. She does all eras, but 18th century is really her best and most knowledgeable. Has some (if slightly undefiled) dress diaries, and an impressive resume. A few good info pages and one FANTASTIC 18th century hairstyle tutorail.
Extreme Costuming- A very tongue-in-cheek look at one costumer's attempts at VERY accurate costumes. I talking hand embroidered, hand-sewn Elizabethan wear. Check out a very funny wall of shame.
Koshka the Cat- Slightly out of date but has some decent costume pics for a few different eras.
The Period Movie Review- Good photos and some nice reviews for many period movies. Not updated anymore but still decent.
Knitting Pattern Central- Large but somewhat disorganized knitting pattern link site.
I'll add on to this if I find any other helpful and/or interesting sites!