As you may know, Infinity Stones (IS) are a major key in order to getting some of the best items that come level 60. I mean, you can get armor, essences, weapons, an assortment of rift lures, and upgrade pieces to better your weapons and armor. But, where do we find these IS at?
If you do the weekly events quest (complete and collect item from completing events) from the dwarf girl in TB you can get 10 IS.
Quijari Dailies - After you do the quest chain in Ashora you can do 5 dailies that reward 2 IS each.
Steppes Dailies - After you do the quest chain in Steppes of Infinity you can do 5 dailies for 2 IS each.
Daily Raid Rift (DRR) - Quest picked up in TB, rewards 10 IS and usually offers two decent chests with great epic gear.
Hero Rises Chronicle - If I didn't add this in Nattalia would probably /strangle me. Upon completion of this you can choose either 1 Empyreal Slayer's Mark or 6 IS.
Onslaughts - Each onlsaught quest completed in Ashora and Steppes give 2 IS each
Volan (Ashora) - This event offers at least 27 IS that I know. Some people say 30 if you get there right at the start, but I only have gotten 27.
Ashora - Couple different events with at least 10 IS each.
Steppes of Infinity - Couple different events with at least 10 IS each.
Morban - Couple different events with at least 5 IS each
Kingsward(?) - Couple different events with at least 5 IS each
Carnages - Ashora and Steppes both offer 2 IS each per carnage completed. There are at least 25 in each zone. At least 100 IS total. These can only be done once however.
Great Hunts - Each one will reward you 1 IS each. You can do as Many as you'd like to, plus you get Torvan reputation.
Instant Adventures - In Ashora and Steppes you can get some from doing IAs and completing the IA quests.
I always make sure to do my dailies, and any events that come up. You have to at least tag the boss in each event if your not doing the entire thing. Usually a banner is dropped for this. I usually get around 80-120 IS each day just from Events and Dailies. However, it does get a bit time consuming.
If anyone knows of any other place to get some feel free to let me know or have someone add it in to this post.