Words not to use in a presentation

We often use certain words such as You Know, Like I said etc in the presentation knowingly or unknowingly. In the blog post Never Ask 'Does That Make Sense? following words are mentioned not to use in a presentation . Following indicates the  uncertainty on the part of the speaker about the accuracy or credibility of the content. and Doubt about the ability of the audience to comprehend or appreciate the content.
• "You know..." as if to be sure the listener is paying attention
• "Like I said..." as if to say that the listener didn't understand
• "Again..." as if to say that the listener didn't get it the first time
• "I mean..." as if to say that the speaker is unsure of his/her own clarity
•  "To be honest..." as if to say the speaker was not truthful earlier
• "I'm like..." the universal filler which says absolutely nothing

What are the factors which shape Industry Competition

There are five factors which shape industry standards: Threat of New Entrants, Bargaining Power of Buyers, Threat of Substitute products or Services, Bargaining Power of Suppliers, threat of New Entrants and Rivalry Among Existing Competitors as shown below in the figure.

How great leaders inspire action - Why, How, What

Simon Sinek presents a simple but powerful model for how leaders inspire action, starting with a golden circle and the question "Why?" His examples include Apple, Martin Luther King, and the Wright brothers and as a counterpoint Tivo, which (until a recent court victory that tripled its stock price) appeared to be struggling.