Using Transitions to Blend Quoted Material
Transitions are words or phrases that indicate the relationship between two statements. They are the "bridges" that link two sentences or paragraphs together.
For instance, the words "furthermore", "also", and "additionally" are transitions indicating that the statement to follow will link to or build upon the ideas expressed in the previous. Notice how this paragraph begins with "for instance".
Transitional words and phrases like "for example" and "for instance" establish that the following statement is going to illustrate the point made in the first. Words such as "however" and "although", on the other hand, establish that the statement following it is a contradiction to the preceding statement.
Using transitions before and after you insert outside source material clarifies for your reader why it was included and how it relates to your focus.