Hans Rosling on global population growth

Here is the link for the presentation Patrice told us about.  I thought it was a very good delivery in spite of his strong accent, meaning that one can really pull it off, even though s/he is not a native speaker. He also presents quantitative data in a very accessible way for a layman.  He definitely made an impression on me, and I can share the information he provided me with at a cocktail party :-) What do think?

More tips on PowerPoint presentations

Here you can find list of do's and dont's for PowerPoint presentations.

Prepositions

Basic prepositions:
Here you can find some exercises on basic prepositions.  The key to the exercises is hereby made available. (Source: English Grammar in Use: Intermediate by Raymond Murphy)

Noun, adjective and verb + preposition:
Here you can find some exercises on nouns, adjectives and verbs which are used with certain prepositions.  The key for the exercises are also hereby made available. (Source: English Grammar in Use: Intermediate by Raymond Murphy)

Phrasal verbs:
Here you can find some exercises on phrasal verbs.  The key to the exercises is hereby made available. (Source: English Grammar in Use: Intermediate by Raymond Murphy)

You can hereby find a link for more online exercises on the topics above.

Present perfect vs. present pefect continuous

Here can find some exercises on present perfect and present perfect continuous.  The key to the exercises is also hereby made available.

State vs. action verbs

Here is  a document where you can find information and exercises on state vs. action verbs, along with key for the  exercises. (Source: English Grammar in Use: Intermediate by Raymond Murphy)

Here is a link for a webpage where you can find some  exercises on the same topic.   

Here you can find the list of verbs. (Source: LONGMAN Advanced Learners’ Grammar by Mark Foley &  Diane Hall)

The 10/20/30 Rule of PowerPoint

Here you can find Guy Kawasaki's recommendations on the length (10 slides), duration (20 minutes) and font size (30 points) in a PowerPoint presentation.

Here you can find a stream of his pitch. ('Bozo' means 'fool'.)

Lists of three and the rule of 3s: two speeches

Here you can find the first part of Steve Jobs's iPhone product launch speech.

Here you can find Barack Obama's inauguration speech.

In both of them, please pay attention to the usage of the lists of three and the rule of 3.

Here is a stream where the rule of 3s is explained among other useful tips on making presentations.