Do your homework. Go to your local bookstore or your favorite Internet bookseller and research anthologies that are currently in publication. Try to come up with an usual theme to make your anthology to stand out. You can use a generalist theme or narrow it down to a specific subject, but be sure that your subject is something you truly care about and that you believe people would enjoy reading.
Create a website to promote your short story anthology. If you are including the work of other writers, use the website to ask for writer submissions. Inform writers what type of stories your anthology will include and expectations regarding length of stories, number of stories you are willing to accept, author biography requirements and deadline for submission.
Inform interested writers how they will be compensated. Often, if writers are not compensated monetarily, they are compensated with copies of the anthology. Make sure this is clear to all parties involved.
Gather the anthology in a way that the short stories will flow well from one to the next. Your anthology should begin with the three best anthologies.
Create a title page that lists you as the author as well as an introduction that connects the stories thematically. If your anthology includes the work of other writers, the title page will list you as the editor. You will also need to create a biography page with information about each author and links to their web pages, if available.
Locate a publisher for the anthology or consider self-publishing your anthology. Take a look at the 'Anthologies Online' website for good information regarding publishing anthologies. The website is included in the resource section below.
Promote your short story anthology. Call local radio and television stations and request an interview. Put short excerpts of the anthology on your website and provide information regarding how it can be purchased. Send an article to your local newspaper.