Below is a mixture of many types of market calls, mostly fiction, but also some freelance commercial calls. The fiction listings are comprised of all sorts of things, including romance, gblt, horror, fantasy, sci-fi. Not sure if I have any mainstream stuff or not, but I’d be happy to add it.

How to use this mish-mash of info:

A list of Romance Publishers of all sorts, also writers’ resources: http://www.passionatepen.com/romancepubs.htm

A list of Erotic Romance E-Publishers: http://www.erecsite.com/PLIST.html from successful writer, Emily Veinglory.

http://www.erecsite.com/index.html The Erotic Romance & Publisher Comparison
 

Yet another list of e-publishers: http://www.epicauthors.org/ From their website: EPIC, The Voice of Electronic Publishing. EPIC, the Electronically Published Internet Connection, is a professional organization for published and contracted e-book and print authors. It was established to provide a strong voice for electronic publishing.

http://community.livejournal.com/erotic_authors/ Another great site for erotica calls

Harlequin’s erotica line (there’s one for novel length and one for shorter) http://www.eharlequin.com/articlepage.html?articleId=1264&chapter=0

All of Harlequin’s many imprints here: http://www.eharlequin.com/articlepage.html?articleId=538&chapter=0

A bunch more:
http://www.queerwriters.com
http://community.livejournal.com/erotic_authors/
http://naughty_wurds.blogspot.com
http://community.livejournal.com/markets/
http://www.absolutewrite.com/forums/forumdisplay.php?f=24 (some fiction, mainly freelance commercial calls)
http://community.livejournal.com/market_finder/
http://www.projectqueerlit.com/overview.php

Scifi and fantasy: http://www.locusmag.com/Links/Portal.html

SpecFic writer Piers Anthony has compiled a large list of publishers on his site: http://www.hipiers.com/publishing.html Apparently Mr. Anthony publishes here: http://www.mundania.com/submissions.html, but as you can see, submissions are closed until later this year. (Using the WayBack Machine, I was able to pull up their old submission guidelines which might help if one were thinking of getting something ready for them when they reopen to submissions. Doesn't say anything about GBLT, one way or the other: http://web.archive.org/web/20060423193536/http://www.mundania.com/submissions.html )

Another interesting article by Judy Bagshaw: http://www.romancewriter2writer.com/finding_publishers.htm

http://www.anotherealm.com/prededitors/peba.htm Oddly, neither of the publishers who've contracted my stories--one large and established with several imprints, and one new and small, is listed, so I'd say despite their best attempts (and the mass of the list) it's not entirely complete.

John Scalzi has a post in his blog about what he makes writing. http://www.scalzi.com/whatever/004893.html

A great place for sci-fi and fantasy calls: http://community.livejournal.com/specficmarkets/

Duotrope is most useful if you have finished pieces, but I've also just stuck rough estimates of things I'm thinking about writing in the search engine. It sorts by "highest paid". http://www.duotrope.com/

Like Duotrope, Storypilot is a database of possible places to submit, only it's specific to sci-fi, fantasy, and horror. http://storypilot.com/

Duotrope and Storypilot are great if you have a "body of work" created by "origifying your fanfiction: http://www.stormgrant.com/storm_work/nonfiction/OFF.htm

Quintamid bills itself as "a service to the science fiction, fantasy and horror community".
Their market database: http://quintamid.com/q/mdb/list/TA-------
Note: The 7 hyphens are part of the URL
 

Newsletter from romance author Cindi Myers (AKA Cynthia Sterling). "Once a week, I also post the latest market news I've gleaned in talking with my agent, editors and surfing the 'net." http://groups.yahoo.com/group/CynthiaSterling/

Here’s the Erotic Readers and Writers Association page of Calls. Get yourself added to the email lists and the calls just drop into your mailbox.
http://www.erotica-readers.com/ERA/G/Call_For_Submissions.htm
 

Best thing is, Adrienne adds comments to the calls based on her years of experience, such as "this is a trustworthy place", "this is a new commodity", "Watch for xxx in the contract". (I'm paraphrasing big-time, obviously.) Not only is it useful relating to the particular Call, but it teaches you what to look for in future calls and contracts. Check out their Writer’s Resources as well:
http://www.erotica-readers.com/ERA/AR/Erotica_Authors_Resources.htm

http://www.ralan.com is great for specfic and humour (and I think horror) calls. He even includes an area with response times. (So does, duotrope, I think.)

The Fine Print of Self-Publishing: The Contracts & Services of 48 Major Self-Publishing Companies--Analyzed, Ranked & Exposed (Paperback). I used to "Search inside" function, and it names names, with a chapter on the best companies to publish with, a chapter on "pretty-good" ones, one on poor ones, and one in all caps on "PUBLISHERS TO AVOID". Could be very useful if you were thinking of going that route. Under US$12.00. Go for it.

Here's another useful link, this one for Canadian publications looking for submissions. There's a lot of calls for poetry and literary writings. There's also freelance and non-fiction related work listed: Places for Writers:

"Resources for Canadian (and international) writers, updated daily with contests, calls for submissions, and other literary tidbits." http://www.placesforwriters.com/

From Superqueeroes

• Poets and Writers.com: a website and a newsletter: http://pw.org/

• Writing for Dollars http://writingfordollars.com/

• Writers Digest http://www.writersdigest.com/ just added a newsletter for their Novels and Short Stories Market book, which includes some of the new markets since the book was released. They have several newsletters.

From Erastes

• Useful for agent info: http://www.karenafox.com/agentlist.htm

• http://www.writersservices.com/agent/uk/agent_uk.htm (uk agents)
  www.agentquery.com (usa agents)

• http://everyonewhosanyone.com/agus1.html (very information rich site
  which actual responses  good and bad from agents)
   

From verdandiweaves

• In the UK the Society of Authors is enormously helpful to new writers, checking contracts etc for free. You can join as soon as you've been offered your first contract. They will also advise on all areas of the industry as well as fighting the authors corner in all manner of areas.