The Academic Phrasebank of The University of Manchester provides a comprehensive selection of phrases to use in your writing to: describe methods, report results, discuss findings and write conclusions. General Functions, in the side menu, has phrases for giving examples, classifying and listing, explaining cause and effect, comparing and contrasting, describing trends, describing quantities.
The Academic Word List will help you to learn and use core academic vocabulary. These 570 word families will not only improve your comprehension of academic texts but also your ability to write assignments in an academic style.
Transition words
Here you can find all kinds of linking words. If you think these are useful pages, you may want to copy the link to your favourites.
Information on writing numbers.