MyComicShop

MyComicShop is the online operation of Lone Star Comics, a Texas-based dealer that has been trading comics for over forty years. The site is one of the most comprehensive online sources for back issues — their searchable database lists millions of individual comics, graded slabs, magazines and trade paperbacks, with consistent grading standards and clear photographs for higher-value books.

The site runs scheduled live-style weekly auctions for collectible single issues alongside its standard buy-it-now storefront. A standout feature is the want-list system, which automatically alerts you when matching issues come into stock or up for auction — invaluable when you are filling long runs or hunting elusive variants.

MyComicShop also operates an active buying desk: collectors can submit lists of comics they want to sell and receive a quoted offer, with the option to ship in for grading and resale. Their submission service to CGC is well-regarded in the US market.

For UK collectors, international shipping is supported but obviously incurs the usual customs and duty considerations on books over the de minimis threshold. The site's deep back-issue database makes it a useful research tool even when you are not buying directly from them.