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Sciweavers is a bookmarking network for researchers to share and explore research paper preprints grouped by conference name and year or subject area.

PDFSplit! is a free online PDF splitter. No installation, no registration, it

A-PDF Solution is a PDF software developer who focuses on providing affordable Acrobat PDF tools and customization service for personal and small business.

YouTube is a place to discover, watch, upload and share videos.

PDFMate Free PDF Converter is a 5-in-1 PDF program to easily convert your PDF to editable Text files, common images, EPUB eBooks, HTML files, and even SWF files.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

Split PDF files on Mac or Windows with Multi PDF Splitter . Powerful and efficient desktop program to Split your PDF files into single PDF pages seconds!

Website optimization speeds up slow web sites, increases website traffic, and improves conversion rates. Our web optimization services increase website performance, decrease bailout rates, and improve search engine rankings.

Kvisoft, professional Flash flipping book and Flash photo software provider, dedicates to offering you an easy way to make PDF flipping page book and Flash photo albums.