For those of us who have trouble talking over the phone or would simply rather communicate by online chat, the National Suicide Prevention Lifeline has an online chat. Please take advantage of it if you are experiencing suicidal thoughts or desires. There's information about things like what to expect for the chat on this page, from which you can also access the chat.
http://chat.suicidepreventionlifeline.org/GetHelp/LifelineChat.aspx
Note: This is US only. I'm not very familiar with services that may be available in other countries. If you are aware of other resources like this, please feel free to mention them here.
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Yet in my new wildness and freedom I almost welcome the bitterness of alienage. For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men.
-H. P. Lovecraft, "The Outsider"