Below are slideshows, each one has some info for each picture. While some have links so you can read more info as you please. Go to link will give you more info for the picture your on. From race location and items.
WARNING: If you click the links you may find some spoilers if you're watching the anime or reading the manga. Read at your own discretion.
Bleach Races
Locations
Items
Extra info that I could not find pictures for.
Hallows
Hallows- Are former Pules whom were unable, or were never sent to the soul society. Some were attacked by hallows and changed. While over time some become Hallows. Hallow devour the souls of humans alive, or dead! They all share a common trait of a skull-like mask. And a whole were their chain of fate use to be.
Spirts
Tsukirei (Possessive Spirit)- This spirit is bound to a person instead of a place.
http://bleach.wikia.com/wiki/Plus#Plus
Toju (Sword Beast)- Zanpakuto Spirit that somehow live on despite their master died. Which then show raging and berserk tendencies. These being can use their former power to their highest, in essence, a Bankai. After they live a while they return back to their sword form.
Items
Spiritual Limiter: All captains, and lieutenants have a seal called he Gentei Rein. Which they use in the human world so not to damage it. This drops their spiritual pressure by 80%. At times, they need Gentei Kajio to release their spiritual energy.
Kikanshinki/Kiokuchikan (Account-Replacing Spirit Device): A devices that used on humans to change their memories. In case, they have seen soul reaper or hallows. It's also used to deal with damages that were done. A bird head pops up, and smoke. Later they wake with a new memory. Which is based on what their mind comes up with to fill in the blank.
For more in depth info if you need or want it. While some may just need to refresh their mind. Click this link and visit the different tabs. It will have races, location, tecqunines and more.