electronic spam
unsolicited electronic messages, especially advertisements
social spam
unwanted spam content appearing on social networking services
Joe job
unsolicited email with spoofed sender data
junk fax
unsolicited advertising via fax
Spam in blogs
form of spamdexing done by posting random comments, copied material, or promotion of commercial services
image spam
type of email spam
Twitter bomb
term that refers to posting numerous Tweets with the same hashtags and other similar content, including @messages, from multiple accounts, with the goal of advertising a certain meme, usually by filling people's Tweet feeds with the same message
Newsgroup spam
type of spam where the targets are Usenet newsgroups
mobile phone spam
Unwanted communication through a mobile phone
email spam
unsolicited electronic advertising by e-mail
forum spam
posts on Internet forums that contains related or unrelated advertisements