Free fiction: Audio versions of a bunch of old stories at LibriVox

All via QuasarDragon. Linked pages often also include link to online text version of the story.

1. [novel] Murray Leinster's "Operation Terror".
2. [novel] Henry Kuttner's "The Creature from Beyond Infinity".
3. "Short Science Fiction Collection Vol. 009": Includes Kurt Vonnegut's "2BR02B"; Jack Williamson's "The Cosmic Express"; Bradner Buckner's "The Day Time Stopped Moving"; Fredric Brown's "Earthmen Bearing Gifts"; Irving E. Cox's "Impact"; Therese Windser's "Longevity"; Randall Garrett's "The Measure of a Man"; Murray F. Yaco's "No Moving Parts"; Tom Godwin's "The Nothing Equation"; & Algis Budrys' "The Stoker and the Stars".

Here are the older versions of their short fiction collections; future posts of these collections will be automatically picked up by reprints feed. (Oops - may be original fiction feed is a better place, since these are original audio recordings. But I've already made the code change. Will reconsider it later.)

1. "Short Science Fiction Collection Vol. 008": This is a special edition dedicated to Alan Edward Nourse (all stories are his): "Circus"; "The Coffin Cure"; "Letter of the Law"; "The Link"; "Meeting of the Board"; "My Friend Bobby"; "The Native Soil"; "An Ounce of Cure"; "PRoblem"; "Second Sight".
2. "Short Science Fiction Collection Vol. 007": Includes Kurt Vonnegut's "2 B R 0 2 B" (vol 9 has a more recent version); Randall Garrett's "… After a Few Words …"; F. E. Hardart's "The Beast of Space"; Edmund H. Leftwich's "The Bell Tone"; Ralph Williams' "Cat and Mouse"; Tom Godwin's "Cry from a Far Planet"; Frank Banta's "Droozle"; James H. Schmitz's "An Incident on Route 12"; Randall Garrett's "The Man Who Hated Mars"; Patrick Fahy's "The Mightiest Man".
3. "Short Science Fiction Collection Vol. 006": Includes Peter Baily's "Accidental Death"; Randall Garrett's "…After a Few Words…" (vol 7 has a more recent version); H. G. Wells' "The Diamond Maker"; John Cory's "Egocentric Orbit"; H. Beam Piper's "Flight From Tommorow"; Jules & Michel Verne's "In the Year 2889"; Randall Garrett's "The Measure of a Man" (vol 9 has a more recent version); Voltaire's "Micromegas"; Frank Belknap Long's "The Sky Trap"; Jack Douglas' "Test Rocket".
4. "Short Science Fiction Collection Vol. 005": Kurt Vonnegut's "2BR02B" (vol 9 has a more recent version); Poul Anderson's "The Burning Bridge"; Alan Edward Nourse's "Circus" (vol 8 has a more recent version); H. Beam Piper's "Crossroads of Destiny"; John Cory's "Egocentric Orbit" (vol 6 has a more recent version); Al Sevcik's "A Matter of Magnitude"; Kevin Scott's "Quiet, Please"; Mack Reynolds' "Summit"; Stephen A. Kallis' "The Untouchable"; John Keith Laumer's "The Yillian Way".
5. "Short Science Fiction Collection Vol. 004": Robert J. Martin's "Beyond Pandora"; Sewell Peaslee Wright's "The Infra-Medians"; Harry Harrison's "The Misplaced Battleship"; Frank Herbert's "Missing Link"; Robert Wicks' "The Quantum Jump"; Harry Harrison's "The Repairman"; Raphael Aloysius' "Sodom and Gomorrah, Texas"; Larry Shaw's "Stairway To The Stars"; Roger Dee's "Traders Risk"; Larry M. Harris' "Wizard".
6. "Short Science Fiction Collection Vol. 003": C.C. MacApp's "And All the Earth a Grave"; Walter S. Tevis' "The Big Bounce"; Alan Edward Nourse's "The Dark Door"; Keith Laumer's "Gambler’s World"; James H. Schmitz's "An Incident on Route 12" (vol 7 has a more recent version); Harry Harrison's "The Repairman" (vol 4 has a more recent version); Dean Charles Ing's "Tight Squeeze"; H. Beam Piper's "Time and Time Again"; Ron Cocking's "Warning from the Stars"; Don Peterson's "The White Feather Hex".
7. "Short Science Fiction Collection Vol. 002": Kurt Vonnegut, Jr's "2BR02B" (vol 9 has a more recent version); H. Beam Piper's "The Answer"; Evelyn E. Smith's "The Blue Tower"; Fritz Leiber's "Bread Overhead"; Poul Anderson's "The Burning Bridge" (vol 5 has a more recent version); Alan Edward Nourse's "Second Sight"; William Carroll's "Solomon’s Orbit"; Robert Augustine Ward Lowndes's "The Troubadour"; Thornton DeKy's "The Ultimate Experiment"; E. M. Clinton, Jr's "Untechnological Employment".
8. "Short Science Fiction Collection Vol. 001": Graph Waldeyer's "The 4D Doodler"; Fritz Leiber's "Bread Overhead" (vol 2 has a more recent version); Alan Edward Nourse's "Image of the Gods"; G L Vandenburg's "Martian V. F. W."; James Blish's "One Shot"; Robert H. Wilson's "Out Around Rigel"; Stanley Grauman Weinbaum's "Pygmalion’s Spectacles"; Harry Harrison's "The Repairman" (vol 4 has a more recent version); Harry Harrison's "Toy Shop"; Ron Cocking's "Warning From The Stars".

PS: No "more stories" links for vol 1-4 because adding links is very time consuming. Sorry.