Reading Trails combines members’ interests in reading with an intriguing way to browse the relationships between books and authors to present new books you might want to read. Using “trails,” essentially lists of books entered by members based on the relationships between titles the member chooses, one can explore a series of ideas and books. 
Reading [...]

TextIt is a Nigerian social network built on short message service (SMS) text communications and a Web site that lets members set up friend lists and share discussions. We’d like members to add their thoughts about what is valuable and useful in TextIt.
Home Page: Text.it.com.ng
SMS-based social networking system serving Nigeria. 
Fee, based on number of messages [...]