If you are looking for new places to explore online, there are more and more niche blogs that might tickle your funny bone for a few minutes or may be something you are passionately into, especially with the explosion in the number of Tumblr blogs -over 20 million of them! There's something about the Tumbler combination blogging and social network platform that inspires new bloggers to try it out, and also inspires established bloggers to launch two, three, or dozens of new blogs about very narrow subjects (even mental_floss has one). Not all the niche blogs here are Tumblr blogs, but the vast majority are. I have conveniently ignored the many blogs with an expletive in the title.
Food
Ramen noodles aren't just for preschoolers and starving college students anymore! But before you select yours, consult the Ramen Rater. The author of the Ramen Rater has sampled and critiqued 451 unique varieties of instant ramen noodles from around the world -so far! The blog has those ratings, as well as all kinds of recipes and other information about noodles. Pretty Foods & Pretty Drinks is a photoblog of consumables that are too artful to actually eat. Pictured are mini flag cakes; links to the recipes or original pictures are included. Doom Cakes spans the gap between food blogs and movie blogs. This site documents the "cinematic tradition in which any beautifully decorated cake serves as a harbinger of imminent catastrophe (often including the destruction of said cake)."
Animals
You'll never go wrong posting pictures of cute animals. There are so many such pictures that very specific blogs grew up around the available material. Animals with Stuffed Animals shows us our pets snuggled up with the toys they love. Aww!
Cats. Where they do not belong. is a photo blog of cats in strange places. Well, maybe not so strange to anyone who has a cat. Pets Who Want to Kill Themselves features pictures of animals dressed up in clothing or costumes. They would be embarrassed if they cared. Along the same lines, Animals Dressed as Other Animals limits itself to pets wearing costumes depicting animals.
Chemistry
Beautiful Proteins is a serious science blog by Mike Tyka, a scientist who is also an artist. He renders the molecular structure of proteins in a way that both illustrates their makeup and shows their beautiful patterns. Shown here is a complex arrangement of eight cystatin C molecules. Caffenol is a blog dedicated to the homemade film developing chemical caffenol, which consists of instant coffee and washing soda, and its uses. A fascinating, if obscure, hobby.
History
You know these two fine-looking young men, even if you've never seen a photograph of either one before. They were both posted at My Daguerreotype Boyfriend, a photo blog dedicated to the attractive men of yesteryear that are still with us thanks to the invention of the camera. On the left is Almanzo Wilder, husband of author Laura Ingalls Wilder. On the right is Russian author and playwright Anton Chekhov. Hotties from History posts photos along the same lines, but doesn't limit itself to men.
Historical Meet-Ups documents those moments when celebrities who (one would think) have no reason to ever meet actually did. You might be surprised, but remember that celebrities can be fans, too -with better access to their object of admiration than we have. Then there are those stories of coincidence, such as Albert Einstein living in the same New Jersey neighborhood as the child who grew up to be the ultra-hippie Wavy Gravy. Black and WTF features strange photographs from way back in time. Some have explanations, some don't; it just proves that ever since the invention of photography, people have pointed cameras at weird sights that no one would believe otherwise.
Celebrities
Actors With Action Figures collects pictures of the unique set of actors who portrayed a character and then had the honor of having the toy action figure designed to look like them. Shown is actress Karen Gillan with the Amy Pond action figure from Doctor Who designed after her portrayal. Another truly specific blog subject is Tom Hanks in a Wax Museum. There's enough material to keep this one going because so many museums have a Tom Hanks figure, and so many tourists have their photograph made with them.
Celebrity Dinosaurs Are Awesome! imagines your favorite dinosaurs with famous faces. Yes, that's all it is. Pictured is the Stephen Colberaptor. The blog Everything is Better with Ducks has pictures of a cartoon duck dressed as various celebrities, fictional characters, and themes.
Words
Starbucks Spelling is dedicated to the custom of baristas writing a customer's name on a cup, for which they sometimes get the spelling wrong. The offense is forgivable as it's hard to hear in a crowded shop, but the result is often worth a laugh. Shown here are four different orders Omar recorded. Onion-like Headlines in Real Life tracks wonderfully absurd or punny headlines, which only encourages more of that sort of thing. More power to them.
Star Trek
Spock on Earth is a blog featuring Craig Galentine's Star Trek Kokeshi dolls placed in various real-world settings and situations. He invites suggestions for new photographs. Here you see Spock browsing the tomatoes at the Union Square Green Market in New York City. At another blog, Spock is Not Impressed, we see Photoshopped images of Spock being very unimpressed by things we would find quite impressive. So be it. Spock rarely, if ever, appears in Fashion It So, a blog about the clothing and costumes seen on the TV series Star Trek: The Next Generation. Charlie and Anna are having a good time capturing screenshots and coming up with commentary on the fashions of the 23rd century.
See also: A Sampling of Niche Blogs
Niche Blogs: Found Photos Edition
Niche Blogs: Focused on Food
Niche Blogs: The English Language
Niche Blogs for Everyone!
Strangely Specific: A Roundup of Niche Blogs