Updated from 6:12 a.m. EDT

Jim Cramer isn't afraid to tell people to sell or to warn investors about problematic stocks. Cramer is famous for saying, "I'm not about making friends, I'm about making you money." He held true to that mantra this week when he advised investors on the "four horsemen" of tech.

Here are some Cramer highlights from over the past week as aggregated from his "Mad Money" TV show, the "Stop Trading!" segment on

CNBC

and his

RealMoney

blog posts.

Cramer's Indestructible Stock Picks

: On

Wednesday's "Mad Money"

Cramer offered up some indestructible stocks that could make money in almost any economic environment.

Cramer's Indestructible Stock Picks

including

Intuitive Surgical

(ISRG) - Get Report

and

Google

(GOOG) - Get Report

.

Cramer's Four Horsemen Take

: On a

"Wall Street Confidential" video Wednesday

, Cramer said: "At this point, people who didn't get into

Apple

(AAPL) - Get Report

,

Research In Motion

( RIMM) or

Amazon

(AMZN) - Get Report

have missed these stories, but what people haven't missed is

Google

." For more, check out

Cramer's Four Horsemen Take

.

Cramer's Four Stocks to Worry About

: On Tuesday, Cramer warned investors about four stocks that could see trouble ahead. In an Oct. 23 blog post he wrote, "Watch

Countrywide

( CFC). Watch

WaMu

(WM) - Get Report

. And, I believe, watch

PMI Group

( PMI) and

Magic Software

(MGIC) - Get Report

. Those are the Achilles heels of the system. They are not getting better. They are getting worse." For more, check out

Cramer's Four Stocks to Worry About

.

Cramer's Mineral Stock Plays

: Cramer believes the selling in the mineral stocks is overdone and the group could be ready to bounce. In an Oct. 22 blog post he wrote, "It never stops. We get a couple of articles about how the worldwide economy might be slowing and then everybody sells every mineral stock. Every one of them!"

Cramer's Mineral Stock Plays

include

Freeport-McMoRan

(FCX) - Get Report

.

Cramer's Oil Stock Picks

: Cramer sees opportunity in buying oil stocks on dips. In an Oct. 23 blog post he wrote, "I believe that the way to buy these stocks is simple: when they come down 5%-7% buy them with the expectation that oil prices will firm because of demand, but when they spring back to new highs or have nice increases from where you bought them, sell them."

Cramer's Oil Stock Picks

included names like

Chevron

(CVX) - Get Report

.

Cramer's AG Stock Picks

: Cramer continues to be bullish on the agriculture sector. In an Oct. 23 blog post he wrote, "This group is not going away. Renewable fuels are going to get cheaper and better, and at $80-$90 oil they are a bargain."

Cramer's AG Stock Picks

include

Bunge

(BG) - Get Report

and

Deere

(DE) - Get Report

.

Cramer's Georgia Tech Student Picks

: On

last Thursday's "Mad Money" show

, Cramer dissected stock picks from the Georgia Tech investment committee. Check out

Cramer's Georgia Tech Student Picks

, including

Nokia

(NOK) - Get Report

and

Johnson Controls

( JCG), to see what Cramer thought of the picks.

Lightning Round:

Cramer was full speed ahead last night with his latest

Lightning Round

. He was bullish on several stocks such as

GM

(GM) - Get Report

and

Ford

(F) - Get Report

but also bearish on the likes of

USEC

(USU)

and

FuelCell

(FCEL) - Get Report

.

(Editor's note: At the time of original publication of his posts and shows, Cramer owned Freeport-McMoRan for his Action Alerts PLUS charitable trust.)

At the time of publication, Altucher and/or his fund had no positions in stocks mentioned, although positions may change at any time.

James Altucher is president of Stockpickr LLC, a wholly owned subsidiary of TheStreet.com and part of its network of Web properties, and a managing partner at Formula Capital, an alternative asset management firm that runs a fund of hedge funds. He is also a weekly columnist for

The Financial Times

and the author of

Trade Like a Hedge Fund

,

Trade Like Warren Buffett

and

SuperCa$h

. Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. Altucher appreciates your feedback;

click here

to send him an email.

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