Official Websites

Official Ninja Turtle Website- Episode summaries, screencaps, images from all medias, comic book info, character profiles, and more.

TMNT 25- "Dudes and dudettes, join the TMNT25 family this summer for the TMNT™ 25th Anniversary Shell-ebration Sweepstakes! "

Fansites

Greenwillow's TMNT Lair- Greenwillow's personal fansite. It has her great fanfiction, videos, dolls/avatars, and much more!

The one and only Purple Dragon recruit site!- Purple Dragon mission statement, career opportunities, and a rant on the new movie.

TMNT LJ- A Livejournal community for everything (but fanfiction) TMNT.

TurtleHet- A livejournal community for TMNT fanfiction and fanart of a heterosexual nature. Age verification through a livejournal account is required to view adult content, but lower ratings are veiwable by guests.

Turtlecest- A livejournal community for fanfiction and fanart of a brotherly love nature. Same LJ rules apply for adult content.

Turtleslash- A livejournal community for fanfiction and fanart involving relationships between same-sex characters that do not fall under 'Turtlecest.' Same LJ rules apply for adult content.

Stealthy Stories- A forum-based site that has a huge author-base. Personal author sections, as well as TMNT discussion fill these pages.

TMNT-L- A TMNT forum that's been around since the golden years, in one form or another.

Terrapin Tarts- This forum is largely members-only on an individual basis, but spend some time in the guest sections and get to know the people. Various rants, raves, badfic theaters, and general Tartness.

Black And Blue- The gorgeous TMNT art of Sneefee. Did I mention that it's absolutely gorgeous?

Sss979's Fanfiction Site- She's got absolutely wonderful work, though she no longer seems to update. Some content is adult. 

Role Playing Games

 Turtle Tracks- Forum and chat-based TMNT RPG!

Blogs

The Fifth Turtle- Steve Murphey's blog, complete with various TMNT updates.

PalBlog- Peter Laird's blog. TMNT sketches, news, and random musings.

Cowabunga Cartoon Classics- Steve Lavigne and Ryan Brown's blog. Inks, pictures, and news from the Mirage artists.

Blargh!- Eric Talbot's blog. Lots of art, as well as news of upcoming appearances.

Ninja Pizza- A Livejournal TMNT news blog.