Minus is an image hosting service that allows you to upload your personal images and keep them private or share with other people. Also, can

Flickr is an online service provided by Yahoo that allows to upload, organize and share your pictures and videos. This website was acquired by Yahoo

Google Picasa is an application that heklps to organize, archive and manage your photo collections. This app was pucrhased by Google in 2004 and developed

Google Keep is a note taking application developed by Google, that also includes a reminder. Is a possible substitute for popular products like Evernote. Users

Foxit Reader enable users to view PDF files and make basic editing operations. It has a modern interface, can display multiple PDF files in different

EBookDroid is a PDF reader for Android devices, also can open other formats and ebooks. This application allows to open and read PDF files and

MuPDF is a small, fast and useful alternative pdf reader that runs on multiple operating systems and smartphones. Can read PDF and XPS documents, users

Evince is a small application that makes users able to view a series of document formats such as PDF, DjVu, XPS, CBZ and other ebook

Sumatra PDF is a small program that is able to open and display PDF and other file formats. It is open source, it provides basic

Adobe Reader is the default and official program that can open and display PDF files. Is not the single tool that is able to make

Yahoo! Messenger is a chat and messenger for online communication. Can be used as online web service or standalone application. Allows to use emoticons, send

Viber is an application that looks like an instant messenger, but is designed to make phone calls for free, using internet, instead cellular networks. Using