Hi, So_punk_rock! Lisa Michelle's suggestions are wonderful. Loneliness is a real demon. Here are a few links to loneliness/making friends resources culled from PC:

Support for lonely people! A PsychCentral public user-created social group.
Are You Lonesome Tonight? by Laurie Pawlik-Kienlen
Support for lonely people! A PsychCentral public user-created social group.
Depression and Bipolar Support Alliance (DBSA) Home Page
DBSA Support Groups and Chapters
DBSA Support Groups and Chapters Directory (Terms of Use)
Making And Keeping Friends: A Self-Help Guide from the US Dept. of Health and Human Services
WikiHow: How to Make Friends
CalTech Counseling: Making Friends
Summary Guide to Dale Carnegie's How to Win Friends and Influence People