One of the easiest and Free, Open Source, web based utility available to write in multiple Indian languages including Marathi (devanagari). Current langauges supported are
Devanagari, Gujarathi, Bengali, Gurumukhi, Kannada, Malyalam, Telugu and Roman script based languages.

मराठीमध्ये उच्चारानुरूप टंकलेखन करण्याकरता नेटवर आणि नेटशिवाय चालणारी सुविधा.

Yahoo marathi Opensourcegroup: We are a group of people trying to initiate and help Open Source Development in and for Marathi.
Open Source Software मराठीमधे उपलब्ध व्हावे यासाठी कार्यरत असलेले स्वयंसेवक

The goal of this project is to create a Linux distribution that supports Indian Languages from a GUI/Application level as well as Kernel level.