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diff --git a/Plugins/Monitors/Mem.hs b/Plugins/Monitors/Mem.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Mem
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+-- 
+-- Maintainer  :  Andrea Rossato <andrea.rossato@unibz.it>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A memory monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Plugins.Monitors.Mem where
+
+import Plugins.Monitors.Common
+
+memConfig :: IO MConfig
+memConfig = mkMConfig
+       "Mem: <usedratio>% (<cache>M)" -- template
+       ["total", "free", "buffer",    -- available replacements
+        "cache", "rest", "used", "usedratio"]
+
+fileMEM :: IO String
+fileMEM = readFile "/proc/meminfo"
+
+parseMEM :: IO [Float]
+parseMEM =
+    do file <- fileMEM 
+       let content = map words $ take 4 $ lines file
+           [total, free, buffer, cache] = map (\line -> (read $ line !! 1 :: Float) / 1024) content
+           rest = free + buffer + cache
+           used = total - rest
+           usedratio = used * 100 / total
+       return [total, free, buffer, cache, rest, used, usedratio]
+
+formatMem :: [Float] -> Monitor [String]
+formatMem x =
+    do let f n = show (takeDigits 2 n)
+       mapM (showWithColors f) x
+
+runMem :: [String] -> Monitor String
+runMem _ =
+    do m <- io $ parseMEM
+       l <- formatMem m
+       parseTemplate l