Ms. Fanservice/Web Comics

MAG-ISA: Lucia and Claudita.
Issa from Least I Could Do
'Nique, Baby Blue and Fuschia from Sinfest
Pretty much every female from Las Lindas qualifies for this in one way or another.
Most of the female characters in comics by the Brothers Grinn tend to be top-heavy (and/or a bit on the chunky side) and lose their clothing very readily. Supermegatopia in particular plays with this trope. Several of the SMT characters have this as an actual Super Power, most notably the aptly named Distraction Damsel. A few of the male ones do as well, for that matter ("Buck Naked" and "Long Tom" of the All-Stripper Squad are exactly what their names imply).
Haley, the redheaded Action Girl from The Order of the Stick has a few fanservice scenes, many of them ironic parodies of fanservice in general. "Gratuitous Bath Scene", "Wardrobe Malfunction", Show Some Leg, it's all there -- but in stick figure format. The odd thing is, it still counts as effective fanservice, given that it's not hard to imagine what the characters would look like if drawn in a realistic style.
- Julia Greenhilt and Sabine are justified examples; Julia flaunts her attractive body in skimpy clothes to get her way ("Don't you want to look at the girl with the boobs? It always works on my teachers!") and maintain her status as most popular girl in school, while Sabine is a succubus and being a scantily-clad temptress is part of the job.
Busty, blonde, French-accented, full-lipped, big-eyed, prone to wearing the skimpiest outfits possible and very generous with physical contact? DiDi of Ménage à 3 is walking, talking Fanservice... as shown on this page's image.
Jenn Russcans and Tress are the Ms. Fanservice representatives for the Sunday@10 comic. See Examples: here^{[dead link]} and here^{[dead link]}.
Missi from Misfile. As an author-acknowledged exhibitionist, she sometimes seems to be looking for an excuse to display the goods. Not that she has much to display, but then she makes good use of it. Not to worry too much though, the comic is strictly PG-13.
- Although it has to be said all of the female characters have served their time in the Fan Service stakes, especially Cassiel.
- Hell, when are the female characters not in some sort of over the top pose? Honestly it just gets silly at some point. He once had two characters get locked out of a house just so he could have one of them climb through a small window while wearing nothing but a bathing suit.
Monica, from Wapsi Square, has described herself as having "boobs bigger than my head". A common quote among fans on the Wapsi Forums is: "Come for the fanservice, stay for the story."
Wanda Firebaugh in Erfworld is possibly the creepiest version of this you will ever see.
GoGo from Van Heist appears to not take to the concept of modesty, throws it all around without really trying, but isn't interested in being sexy, really. And then you start reading the actual comic and see her personality is like that of a churlish orc woman. On ecstasy. Permanently. Bonkers does not even begin to describe many of her actions, made even more wacked-out seeming by her broken English and devilish anime-esque doubletakes.
Parodied in this A Game of Fools strip.
In Chris Muir's Day by Day, both of the main female characters are routinely depicted in skimpy and/or body-hugging attire, and -- with surprising (unsurprising?) frequency -- in their undies.
Princess Voluptua in The Inexplicable Adventures of Bob.
Falina of Dan and Mab's Furry Adventures. Has the largest bust size of the cast by far. While she isn't scantly clad her assets more then make up for it. As shown by this comic and this one
Pretty much any female character in The Challenges of Zona. Except possibly the one who's half-lizard... no, even her, for somebody.
Cyndi of Penny and Aggie, particularly as drawn by Jason Waltrip. Big-bosomed, usually seen with plunging necklines and bare midriff, and quick to exploit the lust she provokes in students of both genders.
- Brandi has arguably overtaken her in the fanservice department; not only has she been frequently depicted (implicitly) nude in bedroom scenes (which Cyndi only was once); she was also the subject of the comic's only pin-up filler to date. And then there's her ever-increasing bust size...
Saves-a-Fox from Goblins. Kin seems like she could be as well, now that the trauma of her existence has passed. Before that, it was definitely YMMV squickiness. There's also a "player character" who is all about this trope, from that three-person band that used to travel with Forgath and Minmax.
Sam of The Space Between.
Pretty much any and all female characters in Least I Could Do but especially Issa.
Benny in Looking for Group.
Yet Another Fantasy Gamer Comic... oh where oh where to even BEGIN? How about naming someone I know who isn't? Gren, the goblin. (And even there, you have her sister...) The pirate lady is also non-fanservice-y. That's about it.
In Seekers, Giselda's panties are often a topic of forum discussions and gag strips.
Sequential Art has one-off character Helga, who was given a ~~triumphant~~ emergency reappearance (and later again):

The Hamster: The number of hits to the site's dropped this month! We can't have this! Quickly, Helga! To the web-cam!

Out There: Miriam, most obviously, who is often seen in states of undress or semi-dress; even when she's "fully" clothed she usually shows a lot of curves and/or skin. Sherry, Araceli, and Rebecca also have their showoff-y moments but not with the same frequency or intensity.
Thae from Overlord Academy sports a Form-Fitting Wardrobe and Spy Catsuit and tends to get put into fanservice-y outfits for voting rewards.
While the entire comic Oglaf is basically very funny fanservice, special mention goes to Evil Overlord Mistress.
In just about every one of her appearances that Amanda of El Goonish Shive ends up transforming, she usually ends up shrinking or turning into a Half-Human Hybrid. This is Fanservice for a particular segment of EGS's fanbase, not to mention Dan himself.
- Recently, the character most deserving the title Ms. Fanservice has been Elliot.
- Pretty much the entire cast at some point or another... though it never goes too far, as Shive has respect for his creations.
Lauren from Jix is often shown partially naked, in her underwear, or wearing very little since she's the comic's only female human of age. The only time the was cut back was when she was pregnant.
The supervillainess Temujin from At Arms Length who seems to have bought her outfit from the barbarian section of Victoria's Secret. Openly flirty with just about everyone.
Spinnerette: The title character, at times. I mean, the whole part with her pants ripping seemed totally unnecessary. But boy are we glad it was there anyway.
Twokinds started with Flora, who doesn't seem to like wearing clothes - but now there's a new contender with Kat. Especially due to the difference in bust size.
Engie-tan and just about every other female in Nerf Now!!
Donna in C'est la Vie.

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