Loan-a Lisa/References

Cultural references

 * The episode title is a pun on the "" painting, which was previously punned in the episodes "Moaning Lisa," "Moe'N'a Lisa" and "Mona Leaves-a."
 * Nelson's company Snot Wheels is a parody of the toy car company,.
 * : The 2009 Disney/Pixar movie is punned in P.U., the title of the Itchy & Scratchy cartoon Lisa and Bart watch in the car.
 * The music in P.U. starts off with "" by then becomes "Married Life" from , by.

Continuity

 * Lisa and Nelson talk about the time they used to date. ("Lisa's Date with Density")
 * Facebook is shown for the first time, although it was previously mentioned in "Father Knows Worst", "Waverly Hills 9-0-2-1-D'oh" and "Bart Gets a "Z"", and "Coming to Homerica in the Chalkboard Gag.
 * Itchy previously vacuumed up Scratchy's ghost in "Remembrance of Things Slashed".
 * Several characters from previous episodes are friends with on Facebook.
 * Tattoo Annie from "Marge in Chains".
 * Hollis Hurlbut from "Lisa the Iconoclast".
 * Hank Scorpio from "You Only Move Twice".
 * Lucius Sweet from "The Homer They Fall".
 * Steve Mobbs from "MyPods and Boomsticks"
 * When Marge is looking at purses, she points out a Princess Penelope purse. "Once Upon a Time in Springfield"

Goofs

 * Grampa previously gave the Simpson family their inheritance in "Lisa vs. Malibu Stacy", meaning he has now given them their inheritance twice.
 * Though Grampa is senile so probably forgot. This could also be why Lisa asked if he's sure about it.

International premieres

 * "Loan-a-Lisa" premiered on 14 October 2010 in the UK.
 * The episode was broadcast two days after the theatrical release of The Social Network, a film on Mark Zuckerberg's founding of Facebook.